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      <adviser>
        <adviserName>FIDELITY MANAGEMENT &amp; RESEARCH COMPANY LLC (FMR)</adviserName>
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        <adviserName>FMR INVESTMENT MANAGMENT (U.K.) LIMITED</adviserName>
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      <subAdviser>
        <adviserName>FIDELITY MANAGEMENT &amp; RESEARCH (HONG KONG) LIMITED</adviserName>
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      <subAdviser>
        <adviserName>FIDELITY MANAGEMENT &amp; RESEARCH (JAPAN) LIMITED</adviserName>
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      <indpPubAccountant>
        <name>DELOITTE &amp; TOUCHE LLP</name>
        <city>Boston</city>
        <stateCountry>MA</stateCountry>
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      <administrator>
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      <averageLifeMaturity>26</averageLifeMaturity>
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    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Boston Wtr. &amp; Swr. Commission Rev.</nameOfIssuer>
      <titleOfIssuer>Boston Wtr. &amp; Swr. Commission Rev., 2.16% Series 1994 A, LOC State Street Bank &amp; Trust Co., Boston VRDN</titleOfIssuer>
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      <titleOfIssuer>FHLMC Massachusetts Dev. Fin. Agcy. Multi-family Hsg. Rev., 2.24% (Tammy Brook Apts. Proj.) Series 2009, LOC Freddie Mac VRDN</titleOfIssuer>
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      <finalLegalInvestmentMaturityDate>2044-12-01</finalLegalInvestmentMaturityDate>
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          <rating>N/A</rating>
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        <identityOfTheGuarantor>FREDDIE MAC</identityOfTheGuarantor>
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          <rating>N/A</rating>
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      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
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      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
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      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Multi-family Hsg. Rev.</nameOfIssuer>
      <titleOfIssuer>FNMA Massachusetts Dev. Fin. Agcy. Multi-family Hsg. Rev., 2.28% (Avalon Acton Apts. Proj.) Series 2006, LOC Fannie Mae VRDN</titleOfIssuer>
      <CUSIPMember>57583XBG6</CUSIPMember>
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      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
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      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-07-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
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        <identityOfDemandFeatureIssuer>FANNIE MAE</identityOfDemandFeatureIssuer>
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          <rating>N/A</rating>
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      </demandFeature>
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          <rating>N/A</rating>
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      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
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      <illiquidSecurityFlag>N</illiquidSecurityFlag>
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    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Bay Trans. Auth.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Bay Trans. Auth., 2.30% Series 2000 A2, (Liquidity Facility TD Banknorth, NA) VRDN</titleOfIssuer>
      <CUSIPMember>575567VS8</CUSIPMember>
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        <rating>N/A</rating>
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      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2030-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
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        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
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          <rating>N/A</rating>
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      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASSACHUSETTS ST</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
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          <rating>N/A</rating>
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      <yieldOfTheSecurityAsOfReportingDate>0.0229</yieldOfTheSecurityAsOfReportingDate>
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      <excludingValueOfAnySponsorSupport>21500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0089</percentageOfMoneyMarketFundNetAssets>
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      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Bay Trans. Auth. Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Bay Trans. Auth. Sales Tax Rev., 2.37% Series 2022 A, (Liquidity Facility TD Banknorth, NA) VRDN</titleOfIssuer>
      <CUSIPMember>575579N45</CUSIPMember>
      <ISINId>US575579N453</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
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        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
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      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2050-12-31</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
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          <rating>N/A</rating>
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      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0237</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13000000.00</includingValueOfAnySponsorSupport>
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      <percentageOfMoneyMarketFundNetAssets>0.0054</percentageOfMoneyMarketFundNetAssets>
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      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev., 2.20% Series 2010 A1, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57563CBF8</CUSIPMember>
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        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
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      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
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        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
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        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0220</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>41550000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>41550000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0172</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev., 2.37% Series 2010 A2, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57563CCZ3</CUSIPMember>
      <ISINId>US57563CCZ32</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0237</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>63140000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>63140000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0262</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.55% (Boston Univ. Proj.) Series U-6E, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RWD3</CUSIPMember>
      <ISINId>US57583RWD33</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>1</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0155</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>16120000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>16120000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0067</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.59% (Boston Univ. Proj.) Series U-6C, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RWB7</CUSIPMember>
      <ISINId>US57583RWB76</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>1</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0159</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3600000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3600000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.64% (College of the Holy Cross Proj.) Series 2008 A, LOC Bank of America NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RUZ6</CUSIPMember>
      <ISINId>US57583RUZ62</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>1</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BANK OF AMERICA NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0164</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>20545000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>20545000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0085</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.15% (Babson College Proj.) Series 2008 A, LOC Bank of America NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RL86</CUSIPMember>
      <ISINId>US57583RL867</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2032-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BANK OF AMERICA NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0215</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>19810000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>19810000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0082</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.20% (ISO New England, Inc. Proj.) Series 2005, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RAA3</CUSIPMember>
      <ISINId>US57583RAA32</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2032-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0220</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>17015000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>17015000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0070</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.22% (Worcester Polytechnic Institute Proj.) Series 2008 A, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RTX3</CUSIPMember>
      <ISINId>US57583RTX34</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0222</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>29260000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>29260000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0121</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.24% Series 2006, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RFX8</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2026-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1640000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1640000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.24% (Wilber School Apts. Proj.) Series 2008 A, LOC Bank of America NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RD77</CUSIPMember>
      <ISINId>US57583RD773</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2027-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BANK OF AMERICA NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9470000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9470000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0039</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.26% Series 2006, LOC PNC Bank NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RFL4</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PNC BANK NA PITTSBURGH PA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>PNC BANK NA PITTSBURGH PA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0226</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>22005000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>22005000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0091</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.31% Series 2019, LOC Manufacturers &amp; Traders Trust Co. VRDN</titleOfIssuer>
      <CUSIPMember>57584YSL4</CUSIPMember>
      <ISINId>US57584YSL47</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2049-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MANUFACTURERS &amp; TRADERS TR CO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>MANUFACTURERS &amp; TRADERS TR CO</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0231</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>26655000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>26655000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0110</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 1.34% (Harvard Univ. Proj.) Series R VRDN</titleOfIssuer>
      <CUSIPMember>57585KGP7</CUSIPMember>
      <ISINId>US57585KGP75</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2049-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PRESIDENT AND FELLOWS OF HARVARD COLLEGE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>1</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0134</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13675000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>13675000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0057</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 1.59% (Baystate Health Sys. Proj.) Series 2009 J2, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586EKB6</CUSIPMember>
      <ISINId>US57586EKB64</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>1</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0159</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0000</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 1.62% (Amherst College Proj.) Series 2005 J2 VRDN</titleOfIssuer>
      <CUSIPMember>57586CHB4</CUSIPMember>
      <ISINId>US57586CHB46</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>AMHERST COLLEGE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>1</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0162</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>11890000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>11890000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0049</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.10% (Massachusetts Institute of Technology Proj.) Series 2001 J1 VRDN</titleOfIssuer>
      <CUSIPMember>57585KSW9</CUSIPMember>
      <ISINId>US57585KSW98</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MASSACHUSETTS INST TECH, MA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0210</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>33095000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>33095000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0137</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.12% (Massachusetts Institute of Technology Proj.) Series 2001 J2 VRDN</titleOfIssuer>
      <CUSIPMember>57585KSV1</CUSIPMember>
      <ISINId>US57585KSV16</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MASSACHUSETTS INST TECH, MA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0212</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>76715000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>76715000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0318</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.12% (Harvard Univ. Proj.) Series Y VRDN</titleOfIssuer>
      <CUSIPMember>57585KKV9</CUSIPMember>
      <ISINId>US57585KKV97</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PRESIDENT AND FELLOWS OF HARVARD COLLEGE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0212</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>89035000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>89035000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0369</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.16% (Amherst College Proj.) Series 2005 I VRDN</titleOfIssuer>
      <CUSIPMember>57586CGZ2</CUSIPMember>
      <ISINId>US57586CGZ23</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>AMHERST COLLEGE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0216</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>15240000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>15240000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0063</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.16% (Williams College Proj.) Series J VRDN</titleOfIssuer>
      <CUSIPMember>57586CPY5</CUSIPMember>
      <ISINId>US57586CPY56</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2026-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>WILLIAMS COLLEGE, MA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0216</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>12067000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>12067000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0050</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.16% (Amherst College Proj.) Series 2005 J1 VRDN</titleOfIssuer>
      <CUSIPMember>57586CHA6</CUSIPMember>
      <ISINId>US57586CHA62</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>AMHERST COLLEGE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0216</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>29050000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>29050000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0120</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.20% (Partners HealthCare Sys., Inc. Proj.) Series 2005 F, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586CGB5</CUSIPMember>
      <ISINId>US57586CGB54</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0220</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>25290000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>25290000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0105</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.20% (Baystate Health Sys. Proj.) Series 2009 J1, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586EKC4</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0220</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>33000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>33000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0137</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.20% (Baystate Health Sys. Proj.) Series 2009 K, LOC Bank of America NA VRDN</titleOfIssuer>
      <CUSIPMember>57586EKA8</CUSIPMember>
      <ISINId>US57586EKA81</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2039-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BANK OF AMERICA NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0220</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>26265000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>26265000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0109</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.27% Series 2009 O-1, LOC Fed. Home Ln. Bank of Boston VRDN</titleOfIssuer>
      <CUSIPMember>57586ELD1</CUSIPMember>
      <ISINId>US57586ELD12</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>FEDERAL HOME LN BK OF BOSTON</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>FEDERAL HOME LN BK OF BOSTON</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7710000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7710000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0032</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Hsg. Fin. Agcy. Hsg. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Hsg. Fin. Agcy. Hsg. Rev., 2.24% (Princeton Westford Proj.) Series 2015 A, LOC Bank of America NA VRDN</titleOfIssuer>
      <CUSIPMember>57587AJA7</CUSIPMember>
      <ISINId>US57587AJA79</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BANK OF AMERICA NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>29975000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>29975000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0124</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Hsg. Fin. Agcy. Hsg. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Hsg. Fin. Agcy. Hsg. Rev., 2.24% Series 208, (Liquidity Facility Royal Bank of Canada) VRDN</titleOfIssuer>
      <CUSIPMember>57587AL55</CUSIPMember>
      <ISINId>US57587AL559</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2049-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MA SF HOUSING REVENUE 9/12/85</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5800000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5800000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0024</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Hsg. Fin. Agcy. Multi-Family Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Hsg. Fin. Agcy. Multi-Family Rev., 2.27% Series 2013 F, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586NUP4</CUSIPMember>
      <ISINId>US57586NUP40</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>22265000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>22265000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0092</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev., 2.20% Series 2008 C2, (Liquidity Facility Barclays Bank PLC) VRDN</titleOfIssuer>
      <CUSIPMember>576051CE4</CUSIPMember>
      <ISINId>US576051CE41</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2026-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0220</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>27280000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>27280000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0113</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev., 2.21% Series 1999 B, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>576049RU6</CUSIPMember>
      <ISINId>US576049RU64</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0221</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>27700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>27700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0115</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Decatur Indl. Dev. Board Exempt Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Decatur Indl. Dev. Board Exempt Facilities Rev., 2.63% (Nucor Steel Decatur LLC Proj.) Series 2003 A VRDN</titleOfIssuer>
      <CUSIPMember>242846AA1</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>NUCOR CORP</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0263</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9643000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9643000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0040</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>West Jefferson Indl. Dev.</nameOfIssuer>
      <titleOfIssuer>West Jefferson Indl. Dev., 2.36% Series 2008 VRDN</titleOfIssuer>
      <CUSIPMember>953450AD5</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ALABAMA POWER CO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0236</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2800000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2800000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0012</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Saint James Parish Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Saint James Parish Gen. Oblig., 2.80% (Nucor Steel Louisiana LLC Proj.) Series 2010 B1 VRDN</titleOfIssuer>
      <CUSIPMember>790103AH8</CUSIPMember>
      <ISINId>US790103AH86</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>NUCOR CORP</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0280</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6480000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6480000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0027</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Maricopa County Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Maricopa County Poll. Cont. Rev., 2.55% Series 2009 C VRDN</titleOfIssuer>
      <CUSIPMember>566854ER2</CUSIPMember>
      <ISINId>US566854ER28</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2029-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ARIZONA PUBLIC SERVICE CO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0255</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0022</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Stanton County Indl. Dev. Rev.</nameOfIssuer>
      <titleOfIssuer>Stanton County Indl. Dev. Rev., 2.63% Series 1998 VRDN</titleOfIssuer>
      <CUSIPMember>854743AE1</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>NUCOR CORP</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0263</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Stanton County Indl. Dev. Rev.</nameOfIssuer>
      <titleOfIssuer>Stanton County Indl. Dev. Rev., 2.63% (Nucor Corp. Proj.) Series 1996 VRDN</titleOfIssuer>
      <CUSIPMember>854743AD3</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2026-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>NUCOR CORP</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0263</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Burlington Envir. Impt. Rev.</nameOfIssuer>
      <titleOfIssuer>Burlington Envir. Impt. Rev., 2.41% (Kansas City Pwr. and Lt. Co. Proj.) Series 2007 B VRDN</titleOfIssuer>
      <CUSIPMember>121822AZ3</CUSIPMember>
      <ISINId>US121822AZ33</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>EVERGY KANSAS METRO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0241</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Burlington Envir. Impt. Rev.</nameOfIssuer>
      <titleOfIssuer>Burlington Envir. Impt. Rev., 2.41% (Kansas City Pwr. and Lt. Co. Proj.) Series 2007 A VRDN</titleOfIssuer>
      <CUSIPMember>121822AY6</CUSIPMember>
      <ISINId>US121822AY67</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>EVERGY KANSAS METRO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0241</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Wamego Kansas Poll. Cont. Rfdg. Rev.</nameOfIssuer>
      <titleOfIssuer>Wamego Kansas Poll. Cont. Rfdg. Rev., 2.37% (Western Resources, Inc. Proj.) Series 1994 VRDN</titleOfIssuer>
      <CUSIPMember>933623BS8</CUSIPMember>
      <ISINId>US933623BS89</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2032-04-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>EVERGY KANSAS CENTRAL</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0237</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Memphis-Shelby County Indl. Dev. Board Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Memphis-Shelby County Indl. Dev. Board Facilities Rev., 2.63% Series 2007 VRDN</titleOfIssuer>
      <CUSIPMember>58612AAB1</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>NUCOR CORP</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0263</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2330000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2330000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0010</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Beaver County Indl. Dev. Auth.</nameOfIssuer>
      <titleOfIssuer>Beaver County Indl. Dev. Auth., 2.31% Series 2018 A, LOC Truist Bank VRDN</titleOfIssuer>
      <CUSIPMember>07488JAA2</CUSIPMember>
      <ISINId>US07488JAA25</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TRUIST BANK</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TRUIST BANK</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0231</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Blytheville Indl. Dev. Rev.</nameOfIssuer>
      <titleOfIssuer>Blytheville Indl. Dev. Rev., 2.63% (Nucor Corp. Proj.) Series 1998 VRDN</titleOfIssuer>
      <CUSIPMember>096490BV8</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>NUCOR CORP</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0263</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Delaware Econ. Dev. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Delaware Econ. Dev. Auth. Rev., 2.33% (Delmarva Pwr. &amp; Lt. Co. Proj.) Series 1993 C VRDN</titleOfIssuer>
      <CUSIPMember>246387DW1</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>DELMARVA POWER &amp; LIGHT</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0233</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0000</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Boston Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Boston Gen. Oblig., 2.25% Participating VRDN Series Floaters XF 26 08, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>88034MA30</CUSIPMember>
      <ISINId>US88034MA306</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>CITIBANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0225</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0017</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Bay Trans. Auth. Assessment Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Bay Trans. Auth. Assessment Rev., 2.27% Participating VRDN Series XL 02 78, (Liquidity Facility Morgan Stanley Bank, West Valley City Ut</titleOfIssuer>
      <CUSIPMember>88035A4T5</CUSIPMember>
      <ISINId>US88035A4T54</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2050-12-31</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MORGAN STANLEY BK NA SALT LAKE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5625000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5625000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0023</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Commonwealth Trans. Fund Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Commonwealth Trans. Fund Rev., 2.24% Participating VRDN Series Floaters XF 26 06, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>88034MZX7</CUSIPMember>
      <ISINId>US88034MZX72</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>CITIBANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0017</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Commonwealth Trans. Fund Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Commonwealth Trans. Fund Rev., 2.25% Participating VRDN Series Floaters ZF 25 68, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>88034MMN3</CUSIPMember>
      <ISINId>US88034MMN38</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2045-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>CITIBANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0225</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7965000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7965000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0033</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Commonwealth Trans. Fund Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Commonwealth Trans. Fund Rev., 2.25% Participating VRDN Series Floaters ZF 25 67, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>88034MML7</CUSIPMember>
      <ISINId>US88034MML71</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2045-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>CITIBANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0225</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5370000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5370000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0022</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Commonwealth Trans. Fund Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Commonwealth Trans. Fund Rev., 2.27% Participating VRDN Series XF 09 23, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88034WAC8</CUSIPMember>
      <ISINId>US88034WAC82</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2048-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4665000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4665000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0019</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Commonwealth Trans. Fund Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Commonwealth Trans. Fund Rev., 2.27% Participating VRDN Series Floaters XF 06 10, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88034MBM7</CUSIPMember>
      <ISINId>US88034MBM73</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13495000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>13495000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0056</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.24% Participating VRDN Series Floaters XF 27 05, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88034NHJ6</CUSIPMember>
      <ISINId>US88034NHJ63</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8040000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8040000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0033</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.26% Participating VRDN Series MS 3373, (Liquidity Facility Toronto-Dominion Bank)</titleOfIssuer>
      <CUSIPMember>57583UK49</CUSIPMember>
      <ISINId>US57583UK491</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TORONTO DOMINION BANK - NY</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0226</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0033</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.27% Participating VRDN Series Floaters YX 10 74, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033YS28</CUSIPMember>
      <ISINId>US88033YS289</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8560000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8560000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0035</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.27% Participating VRDN Series Floaters ZF 27 22, (Liquidity Facility Morgan Stanley Bank, West Valley City Utah)</titleOfIssuer>
      <CUSIPMember>88034NLR3</CUSIPMember>
      <ISINId>US88034NLR34</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MORGAN STANLEY BK NA SALT LAKE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>14665000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>14665000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0061</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.27% Participating VRDN Series 15 XF0245, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033MAG2</CUSIPMember>
      <ISINId>US88033MAG24</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2045-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>12800000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>12800000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0053</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.27% Participating VRDN Series Floaters ZF 06 04, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033Y3N9</CUSIPMember>
      <ISINId>US88033Y3N98</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0012</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.27% Participating VRDN Series 2016 XM0137, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033MRY5</CUSIPMember>
      <ISINId>US88033MRY56</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7815000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7815000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0032</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.27% Participating VRDN Series Floaters E 130, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RYC4</CUSIPMember>
      <ISINId>US74934RYC41</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2025-01-29</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>38235000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>38235000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0158</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.28% Participating VRDN Series XF 28 91, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88034WG73</CUSIPMember>
      <ISINId>US88034WG732</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2045-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6095000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6095000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0025</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.28% Participating VRDN Series 2018 XF 26 55, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88034M4V5</CUSIPMember>
      <ISINId>US88034M4V58</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4740000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4740000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0020</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 2.28% Participating VRDN Series 2016 XF2207, (Liquidity Facility Toronto-Dominion Bank)</titleOfIssuer>
      <CUSIPMember>88033MSD0</CUSIPMember>
      <ISINId>US88033MSD01</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2041-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TORONTO DOMINION BANK - NY</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0017</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Edl. Fing. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Edl. Fing. Auth. Rev., 2.29% Participating VRDN Series Floaters XF 25 11, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033YB59</CUSIPMember>
      <ISINId>US88033YB590</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0229</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1685000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1685000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Edl. Fing. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Edl. Fing. Auth. Rev., 2.29% Participating VRDN Series Floaters XG 01 39, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033YCM1</CUSIPMember>
      <ISINId>US88033YCM12</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0229</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13055000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>13055000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0054</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Edl. Fing. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Edl. Fing. Auth. Rev., 2.31% Participating VRDN Series XM 07 57, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>88034RM69</CUSIPMember>
      <ISINId>US88034RM698</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0231</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6665000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6665000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0028</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.24% Participating VRDN Series Floaters XF 27 06, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88034NHL1</CUSIPMember>
      <ISINId>US88034NHL10</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0224</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>15800000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>15800000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0065</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.25% Participating VRDN Series Floaters XF 25 74, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>88034MNV4</CUSIPMember>
      <ISINId>US88034MNV45</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2048-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>CITIBANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0225</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0025</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series ZL 02 83, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88035A6F3</CUSIPMember>
      <ISINId>US88035A6F33</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-04-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>14165000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>14165000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0059</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series E 144, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RT55</CUSIPMember>
      <ISINId>US74934RT559</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2024-02-08</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>45000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>45000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0186</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series 16 XM0221, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033SFT6</CUSIPMember>
      <ISINId>US88033SFT69</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2030-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>21630000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>21630000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0090</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series Floaters G4, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74926Y8J3</CUSIPMember>
      <ISINId>US74926Y8J33</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2033-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>17100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>17100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0071</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series Floaters G9, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RBA3</CUSIPMember>
      <ISINId>US74934RBA32</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0039</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series Floaters ZF 26 95, (Liquidity Facility Morgan Stanley Bank, West Valley City Utah)</titleOfIssuer>
      <CUSIPMember>88034NGH1</CUSIPMember>
      <ISINId>US88034NGH17</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2043-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MORGAN STANLEY BK NA SALT LAKE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0041</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series XM 10 21, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88035A8L8</CUSIPMember>
      <ISINId>US88035A8L82</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2041-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2125000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2125000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.27% Participating VRDN Series ZL 03 39, (Liquidity Facility Morgan Stanley Bank, West Valley City Utah)</titleOfIssuer>
      <CUSIPMember>88035DT39</CUSIPMember>
      <ISINId>US88035DT393</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MORGAN STANLEY BK NA SALT LAKE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0025</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.28% Participating VRDN Series Floaters XF 05 30, (Liquidity Facility Toronto-Dominion Bank)</titleOfIssuer>
      <CUSIPMember>88033UUL1</CUSIPMember>
      <ISINId>US88033UUL15</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TORONTO DOMINION BANK - NY</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6665000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6665000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0028</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.26% Participating VRDN Series Floaters XM 02 32, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88033SGY4</CUSIPMember>
      <ISINId>US88033SGY46</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2032-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0226</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6010000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6010000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0025</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.26% Participating VRDN Series 16 XG0014, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88033MX51</CUSIPMember>
      <ISINId>US88033MX516</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2032-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0226</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5550000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5550000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0023</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 1.67% Participating VRDN Series Solar 17 13, (Liquidity Facility U.S. Bank NA, Cincinnati)</titleOfIssuer>
      <CUSIPMember>27884FV98</CUSIPMember>
      <ISINId>US27884FV985</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>US BANK NA CINCINNATI OHIO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>1</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0167</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>15360000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>15360000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0064</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 2.26% Participating VRDN Series EGL 15 0004, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>576000SW4</CUSIPMember>
      <ISINId>US576000SW43</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>CITIBANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0226</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>63160000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>63160000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0262</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 2.27% Participating VRDN Series Floaters XF 27 75, (Liquidity Facility Morgan Stanley Bank,</titleOfIssuer>
      <CUSIPMember>88034NV35</CUSIPMember>
      <ISINId>US88034NV359</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2048-02-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MORGAN STANLEY BK NA SALT LAKE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9750000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9750000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0040</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 2.27% Participating VRDN Series XM 10 51, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>88035DZF5</CUSIPMember>
      <ISINId>US88035DZF58</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2045-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4475000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4475000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0019</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 2.27% Participating VRDN Series ZL 02 95, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88035DEB7</CUSIPMember>
      <ISINId>US88035DEB73</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2048-02-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>11750000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>11750000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0049</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 2.27% Participating VRDN Series Floaters XM 03 89, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033UCS6</CUSIPMember>
      <ISINId>US88033UCS69</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2043-05-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0031</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 2.28% Participating VRDN Series Floaters XF 25 46, (Liquidity Facility Toronto-Dominion Ban</titleOfIssuer>
      <CUSIPMember>88034MFN1</CUSIPMember>
      <ISINId>US88034MFN11</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-11-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TORONTO DOMINION BANK - NY</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4480000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4480000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0019</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 2.28% Participating VRDN Series 15 XF2203, (Liquidity Facility Toronto-Dominion Bank)</titleOfIssuer>
      <CUSIPMember>88033MQC4</CUSIPMember>
      <ISINId>US88033MQC46</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TORONTO DOMINION BANK - NY</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9260000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9260000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0038</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Spl. Oblig. Dedicated Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Spl. Oblig. Dedicated Tax Rev., 2.42% Bonds Series Floaters G 29, tender 01/03/2023, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RFZ4</CUSIPMember>
      <ISINId>US74934RFZ47</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-01-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-01-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>64</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0240</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10420000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10420000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0043</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev., 2.25% Participating VRDN Series Floaters XF 27 01, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88034NHA5</CUSIPMember>
      <ISINId>US88034NHA54</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0225</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0017</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>RBC Muni. Products, Inc. Trust</nameOfIssuer>
      <titleOfIssuer>RBC Muni. Products, Inc. Trust, 2.27% Participating VRDN Series E 148, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RQ58</CUSIPMember>
      <ISINId>US74934RQ589</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-04-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>40000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>40000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0166</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Saugus Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Saugus Gen. Oblig., 2.28% Participating VRDN Series Floaters XF 06 81, (Liquidity Facility Toronto-Dominion Bank)</titleOfIssuer>
      <CUSIPMember>88034M7G5</CUSIPMember>
      <ISINId>US88034M7G54</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TORONTO DOMINION BANK - NY</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7615000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7615000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0032</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Univ. of Massachusetts Bldg. Auth. Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Univ. of Massachusetts Bldg. Auth. Facilities Rev., 2.27% Participating VRDN Series XF 22 96, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>914440MZ2</CUSIPMember>
      <ISINId>US914440MZ21</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2039-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0227</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>11340000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>11340000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0047</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>California Health Facilities Fing. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>California Health Facilities Fing. Auth. Rev., 2.38% Participating VRDN Series DBE 80 11, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>25160RBZ5</CUSIPMember>
      <ISINId>US25160RBZ55</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2025-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>DEUTSCHE BANK AG NEW YORK BNCH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0237</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>14200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>14200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0059</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>California Health Facilities Fing. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>California Health Facilities Fing. Auth. Rev., 2.39% Participating VRDN Series 17 04, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PGP8</CUSIPMember>
      <ISINId>US76252PGP80</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0237</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>795000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>795000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Colorado Health Facilities Auth. Rev. Bonds</nameOfIssuer>
      <titleOfIssuer>Colorado Health Facilities Auth. Rev. Bonds, 2.39% Participating VRDN Series 2022 004, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PRX9</CUSIPMember>
      <ISINId>US76252PRX95</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9900000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9900000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0041</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Univ. of Maryland Med. Sys.,</nameOfIssuer>
      <titleOfIssuer>Univ. of Maryland Med. Sys.,, 2.39% Participating VRDN Series 2022 031, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PVW6</CUSIPMember>
      <ISINId>US76252PVW66</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0237</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0030</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Connecticut Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Connecticut Gen. Oblig., 2.39% Participating VRDN Series Floaters 014, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PJC4</CUSIPMember>
      <ISINId>US76252PJC41</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>845000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>845000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Connecticut Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Connecticut Gen. Oblig., 2.39% Participating VRDN Series Floaters 016, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PJH3</CUSIPMember>
      <ISINId>US76252PJH38</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0019</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Lee County Arpt. Rev.</nameOfIssuer>
      <titleOfIssuer>Lee County Arpt. Rev., 2.31% Participating VRDN Series XF 11 26, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88034YXM7</CUSIPMember>
      <ISINId>US88034YXM73</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2050-12-31</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>DEUTSCHE BANK AG NEW YORK BNCH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0231</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Miami-Dade County Aviation Rev.</nameOfIssuer>
      <titleOfIssuer>Miami-Dade County Aviation Rev., 2.42% Participating VRDN Series 2022 025, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PUS6</CUSIPMember>
      <ISINId>US76252PUS63</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0242</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>600000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>600000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Orlando Health</nameOfIssuer>
      <titleOfIssuer>Orlando Health, 2.39% Participating VRDN Series 026, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PUV9</CUSIPMember>
      <ISINId>US76252PUV92</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>600000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>600000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Palm Beach County Health Facilities Auth. Hosp. Rev.</nameOfIssuer>
      <titleOfIssuer>Palm Beach County Health Facilities Auth. Hosp. Rev., 2.34% Participating VRDN Series XG 03 70, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88035AVV0</CUSIPMember>
      <ISINId>US88035AVV06</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2049-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0234</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1860000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1860000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0008</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>South Miami Health Facilities Auth. Hosp. Rev.</nameOfIssuer>
      <titleOfIssuer>South Miami Health Facilities Auth. Hosp. Rev., 2.31% Participating VRDN Series XF 25 23, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033YZ46</CUSIPMember>
      <ISINId>US88033YZ466</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0231</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>South Miami Health Facilities Auth. Hosp. Rev.</nameOfIssuer>
      <titleOfIssuer>South Miami Health Facilities Auth. Hosp. Rev., 2.39% Participating VRDN Series XM 08 68, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88034WRA4</CUSIPMember>
      <ISINId>US88034WRA44</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Tampa-Hillsborough County Expressway Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Tampa-Hillsborough County Expressway Auth. Rev., 2.44% Bonds Series G-113, tender 01/03/2023, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RD45</CUSIPMember>
      <ISINId>US74934RD454</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-01-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-01-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>64</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0242</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Chicago Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Chicago Gen. Oblig., 2.39% Participating VRDN Series XM 10 05, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88035AN64</CUSIPMember>
      <ISINId>US88035AN640</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>DEUTSCHE BANK AG NEW YORK BNCH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Illinois Fin. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Illinois Fin. Auth. Rev., 2.39% Participating VRDN Series Floaters 017, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PMA4</CUSIPMember>
      <ISINId>US76252PMA48</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2030-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3995000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3995000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0017</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Cuyahoga County Ctfs. of Prtn.</nameOfIssuer>
      <titleOfIssuer>Cuyahoga County Ctfs. of Prtn., 2.34% Participating VRDN Series Floaters XG 02 06, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88034NQU1</CUSIPMember>
      <ISINId>US88034NQU18</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0234</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Middletown Hosp. Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Middletown Hosp. Facilities Rev., 2.39% Participating VRDN Series Floaters 003, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PGL7</CUSIPMember>
      <ISINId>US76252PGL76</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2045-11-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0236</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>590000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>590000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Ohio Hosp. Rev.</nameOfIssuer>
      <titleOfIssuer>Ohio Hosp. Rev., 2.39% Participating VRDN Series 002, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PRB7</CUSIPMember>
      <ISINId>US76252PRB75</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2050-12-31</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0237</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0010</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Port of Seattle Rev.</nameOfIssuer>
      <titleOfIssuer>Port of Seattle Rev., 2.39% Participating VRDN Series XM 10 27, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88035DDG7</CUSIPMember>
      <ISINId>US88035DDG79</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0008</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>CommonSpirit Health</nameOfIssuer>
      <titleOfIssuer>CommonSpirit Health, 2.34% Participating VRDN Series MIZ 90 21, (Liquidity Facility Mizuho Cap. Markets LLC)</titleOfIssuer>
      <CUSIPMember>60700HCK3</CUSIPMember>
      <ISINId>US60700HCK32</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2029-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MIZUHO CAPITAL MARKETS LLC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0234</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1600000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1600000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Kansas City Indl. Dev. Auth.</nameOfIssuer>
      <titleOfIssuer>Kansas City Indl. Dev. Auth., 2.43% Participating VRDN Series XG 03 96, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88035DFM2</CUSIPMember>
      <ISINId>US88035DFM20</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2050-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>DEUTSCHE BANK AG NEW YORK BNCH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0243</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1600000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1600000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Mississippi Bus. Fin. Corp. Rev.</nameOfIssuer>
      <titleOfIssuer>Mississippi Bus. Fin. Corp. Rev., 2.31% Participating VRDN Series 2021 XF 11 05, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88034X5M0</CUSIPMember>
      <ISINId>US88034X5M06</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>DEUTSCHE BANK AG NEW YORK BNCH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>2</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0228</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>New York City Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>New York City Gen. Oblig., 2.39% Participating VRDN Series 2020 003, (Liquidity Facility Wells Fargo Bank NA)</titleOfIssuer>
      <CUSIPMember>94987KRV9</CUSIPMember>
      <ISINId>US94987KRV97</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-04-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>WELLS FARGO BK NATL ASSN</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>42</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0239</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>North Texas Tollway Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>North Texas Tollway Auth. Rev., 2.44% Bonds Series G-112, tender 01/03/2023, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RC79</CUSIPMember>
      <ISINId>US74934RC795</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-01-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-01-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2043-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>64</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0242</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Fulton County Dev. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Fulton County Dev. Auth. Rev., 2.34% Participating VRDN Series XL 02 68, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88035A2J9</CUSIPMember>
      <ISINId>US88035A2J90</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2049-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0234</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>270000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>270000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Mclaren Health Care Corp.</nameOfIssuer>
      <titleOfIssuer>Mclaren Health Care Corp., 2.34% Participating VRDN Series XL 02 71, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88035A3J8</CUSIPMember>
      <ISINId>US88035A3J81</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2050-02-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0234</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>185000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>185000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Metropolitan Washington DC Arpts. Auth. Sys. Rev.</nameOfIssuer>
      <titleOfIssuer>Metropolitan Washington DC Arpts. Auth. Sys. Rev., 2.36% Participating VRDN Series Floaters XF 06 94, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88034NGU2</CUSIPMember>
      <ISINId>US88034NGU28</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2048-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF AMERICA NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>7</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0236</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>170000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>170000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Virginia Pub. Bldg. Auth. Pub. Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Virginia Pub. Bldg. Auth. Pub. Facilities Rev., 2.44% Bonds Series Floaters G 40, tender 02/01/2023, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74934RJK3</CUSIPMember>
      <ISINId>US74934RJK32</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2029-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BK OF CDA NEW YORK BRH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>93</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0243</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0000</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Billerica Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Billerica Gen. Oblig., 2.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>09005PDU1</CUSIPMember>
      <ISINId>US09005PDU12</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-01-27</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-01-27</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-01-27</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0318</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13286138.97</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>13286138.97</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0055</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Boston Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Boston Gen. Oblig., 4.00% Bonds Series 2013 B</titleOfIssuer>
      <CUSIPMember>100853TD2</CUSIPMember>
      <ISINId>US100853TD26</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-01-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-01-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0305</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1797561.11</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1797561.11</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Boston Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Boston Gen. Oblig., 5.00% Bonds Series 2022 A</titleOfIssuer>
      <CUSIPMember>100853F39</CUSIPMember>
      <ISINId>US100853F395</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10930000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10930000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0045</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Boston Wtr. &amp; Swr. Commission Rev.</nameOfIssuer>
      <titleOfIssuer>Boston Wtr. &amp; Swr. Commission Rev., 1.89% Series 2022 A, LOC State Street Bank &amp; Trust Co., Boston, CP</titleOfIssuer>
      <CUSIPMember>10102NEE1</CUSIPMember>
      <otherUniqueId>JLJ107000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-06</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-06</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-06</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>STATE ST BK &amp; TR CO BOSTON</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0258</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>15489216.65</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>15489216.65</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0064</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Boston Wtr. &amp; Swr. Commission Rev.</nameOfIssuer>
      <titleOfIssuer>Boston Wtr. &amp; Swr. Commission Rev., 3.50% Bonds Series 2012 A, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>101029RX6</CUSIPMember>
      <ISINId>US101029RX62</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Brockton Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Brockton Gen. Oblig., 3.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>111746KB8</CUSIPMember>
      <ISINId>US111746KB82</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-06-16</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-06-16</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-06-16</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0353</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1849773.89</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1849773.89</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0008</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Cambridge Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Cambridge Gen. Oblig., 5.00% Bonds Series 2022</titleOfIssuer>
      <CUSIPMember>132286AA3</CUSIPMember>
      <ISINId>US132286AA38</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0308</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>603192.78</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>603192.78</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Cambridge Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Cambridge Gen. Oblig., 5.00% Bonds Series 2017 B</titleOfIssuer>
      <CUSIPMember>1322853X3</CUSIPMember>
      <ISINId>US1322853X38</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0308</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1005321.30</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1005321.30</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Cambridge Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Cambridge Gen. Oblig., 5.00% Bonds Series 2020</titleOfIssuer>
      <CUSIPMember>1322856V4</CUSIPMember>
      <ISINId>US1322856V45</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0308</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1764338.88</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1764338.88</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Framingham Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Framingham Gen. Oblig., 5.00% Bonds Series 2017</titleOfIssuer>
      <CUSIPMember>3516945M2</CUSIPMember>
      <ISINId>US3516945M28</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0307</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>701026.55</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>701026.55</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Gloucester Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Gloucester Gen. Oblig., 4.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>379713NL0</CUSIPMember>
      <ISINId>US379713NL06</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-09-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-09-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-09-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0328</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>23316242.36</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>23316242.36</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0097</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Groton</nameOfIssuer>
      <titleOfIssuer>Groton, 2.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>399316SQ2</CUSIPMember>
      <ISINId>US399316SQ21</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-17</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-17</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-17</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0315</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8114386.06</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8114386.06</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0034</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Littleton Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Littleton Gen. Oblig., 2.00%  BAN Series 2021</titleOfIssuer>
      <CUSIPMember>537802UR9</CUSIPMember>
      <ISINId>US537802UR97</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-18</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-18</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-18</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0282</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6465906.52</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6465906.52</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0027</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Littleton Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Littleton Gen. Oblig., 3.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>537802VN7</CUSIPMember>
      <ISINId>US537802VN74</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-18</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-18</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-18</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0286</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6233299.28</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6233299.28</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0026</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Bay Trans. Auth. Assessment Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Bay Trans. Auth. Assessment Rev., 5.00% Bonds Series 2022 A1</titleOfIssuer>
      <CUSIPMember>575577NH0</CUSIPMember>
      <ISINId>US575577NH00</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0314</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1366393.86</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1366393.86</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0006</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Clean Wtr. Trust</nameOfIssuer>
      <titleOfIssuer>Massachusetts Clean Wtr. Trust, 5.00% Bonds Series 2017 20,</titleOfIssuer>
      <CUSIPMember>575829DB9</CUSIPMember>
      <LEIID>549300SYPEROLSQU0261</LEIID>
      <ISINId>US575829DB95</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0307</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3812453.58</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3812453.58</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0016</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Clean Wtr. Trust</nameOfIssuer>
      <titleOfIssuer>Massachusetts Clean Wtr. Trust, 5.00% Bonds Series 2021 B</titleOfIssuer>
      <CUSIPMember>575829HF6</CUSIPMember>
      <LEIID>549300SYPEROLSQU0261</LEIID>
      <ISINId>US575829HF63</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0307</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>155712.86</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>155712.86</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Clean Wtr. Trust</nameOfIssuer>
      <titleOfIssuer>Massachusetts Clean Wtr. Trust, 5.00% Bonds Series 2014</titleOfIssuer>
      <CUSIPMember>57605AFU5</CUSIPMember>
      <LEIID>549300SYPEROLSQU0261</LEIID>
      <ISINId>US57605AFU51</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-08-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-08-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0315</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5605085.23</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5605085.23</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0023</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev., 5.00% Bonds Series A</titleOfIssuer>
      <CUSIPMember>57563CEG3</CUSIPMember>
      <ISINId>US57563CEG33</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-01-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-01-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0310</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2723074.41</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2723074.41</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0011</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Elec. Util. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Elec. Util. Rev., 2.55% Bonds Series 2022, tender 11/03/2022, (Massachusetts Elec. Co. Guaranteed), CP Mode</titleOfIssuer>
      <CUSIPMember>57584TAA8</CUSIPMember>
      <otherUniqueId>JME761000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-03</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>MASS ELECTRIC CO</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0252</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>13300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0055</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 5.00% Bonds Series 2014 M4, (Pre-Refunded to 7/1/2023 @ 100)</titleOfIssuer>
      <CUSIPMember>57583UG51</CUSIPMember>
      <ISINId>US57583UG515</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2039-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0316</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2428827.84</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2428827.84</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0010</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 5.00% Bonds Series 2015 O2</titleOfIssuer>
      <CUSIPMember>57583UX94</CUSIPMember>
      <ISINId>US57583UX940</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0318</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>156841.32</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>156841.32</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 5.00% Bonds Series 2020 A2</titleOfIssuer>
      <CUSIPMember>57584YWN5</CUSIPMember>
      <ISINId>US57584YWN56</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0350</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5048856.50</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5048856.50</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0021</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Edl. Fing. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Edl. Fing. Auth. Rev., 5.00% Bonds Series 2017 A</titleOfIssuer>
      <CUSIPMember>57563RPA1</CUSIPMember>
      <ISINId>US57563RPA13</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0380</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2015603.60</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2015603.60</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0008</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Edl. Fing. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Edl. Fing. Auth. Rev., 5.00% Bonds Series 2018 B</titleOfIssuer>
      <CUSIPMember>57563RPT0</CUSIPMember>
      <ISINId>US57563RPT04</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0341</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4809330.26</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4809330.26</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0020</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2014 F, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>57582RAD8</CUSIPMember>
      <ISINId>US57582RAD89</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2026-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8330000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8330000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0035</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2014 F, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>57582RAE6</CUSIPMember>
      <ISINId>US57582RAE62</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2027-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>750000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>750000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2020 E</titleOfIssuer>
      <CUSIPMember>57582RH90</CUSIPMember>
      <ISINId>US57582RH909</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2075000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2075000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2017 E</titleOfIssuer>
      <CUSIPMember>57582RQT6</CUSIPMember>
      <ISINId>US57582RQT67</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0000</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2014 F, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>57582RAC0</CUSIPMember>
      <ISINId>US57582RAC07</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2025-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10150000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10150000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0042</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2014 F, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>57582RAA4</CUSIPMember>
      <ISINId>US57582RAA41</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>18005000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>18005000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0075</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2014 F, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>57582RAB2</CUSIPMember>
      <ISINId>US57582RAB24</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2024-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2021 B</titleOfIssuer>
      <CUSIPMember>57582RT55</CUSIPMember>
      <ISINId>US57582RT557</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7770000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7770000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0032</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2016 H</titleOfIssuer>
      <CUSIPMember>57582RLM6</CUSIPMember>
      <ISINId>US57582RLM69</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0302</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>14892418.01</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>14892418.01</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0062</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2018 B</titleOfIssuer>
      <CUSIPMember>57582RRT5</CUSIPMember>
      <ISINId>US57582RRT58</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-01-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-01-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0305</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>697124.75</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>697124.75</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2017 C</titleOfIssuer>
      <CUSIPMember>57582RNQ5</CUSIPMember>
      <ISINId>US57582RNQ55</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0307</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6755928.95</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6755928.95</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0028</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2016 A</titleOfIssuer>
      <CUSIPMember>57582RGH3</CUSIPMember>
      <ISINId>US57582RGH30</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-03-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-03-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0308</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>402460.04</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>402460.04</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2020 A, tender 06/01/2023</titleOfIssuer>
      <CUSIPMember>57582RB70</CUSIPMember>
      <ISINId>US57582RB704</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-06-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-06-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>MASSACHUSETTS ST</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>213</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0327</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>26848236.69</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>26848236.69</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0111</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2018 B</titleOfIssuer>
      <CUSIPMember>57582RTE6</CUSIPMember>
      <ISINId>US57582RTE61</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0314</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3011127.21</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3011127.21</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0012</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.25% Bonds Series 2006 B</titleOfIssuer>
      <CUSIPMember>57582PAD2</CUSIPMember>
      <ISINId>US57582PAD24</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-09-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-09-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0316</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8136131.20</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8136131.20</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0034</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.50% Bonds Series C</titleOfIssuer>
      <CUSIPMember>57582NH73</CUSIPMember>
      <ISINId>US57582NH734</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0304</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>440837.85</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>440837.85</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.50% Bonds Series C</titleOfIssuer>
      <CUSIPMember>57582NH81</CUSIPMember>
      <ISINId>US57582NH817</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0304</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4733997.35</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4733997.35</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0020</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 1.77% Bonds Series 2022 H2, tender 11/07/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CW27</CUSIPMember>
      <otherUniqueId>JLJ773000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-07</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0176</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>12640000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>12640000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0052</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 1.80% Bonds Series 2022 H1, tender 11/01/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>JLI437000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0214</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13844865.70</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>13844865.70</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0057</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 1.80% Bonds Series 2022 H1, tender 11/02/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>JKY899000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0209</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6049897.76</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6049897.76</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0025</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 1.95% Bonds Series 2022 H1, tender 12/01/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>JKR941000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0279</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>12490853.75</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>12490853.75</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0052</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.65% Bonds Series 2022, tender 11/08/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CW27</CUSIPMember>
      <otherUniqueId>JLW789000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-08</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-08</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-08</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0304</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>19583190.35</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>19583190.35</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0081</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.65% Bonds Series 2022, tender 12/02/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>JLX333000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0268</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3559829.12</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3559829.12</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.72% Bonds Series 2022, tender 12/06/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CW27</CUSIPMember>
      <otherUniqueId>JLY500000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-06</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-06</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-06</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0226</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>12531185.34</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>12531185.34</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0052</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health &amp; Edl. Facilities Auth. Rev., 2.75% Bonds Series 2022, tender 12/05/2022, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CW27</CUSIPMember>
      <otherUniqueId>JLX981000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-05</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MASS GENERAL BRIGHAM INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0252</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>17750766.80</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>17750766.80</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0074</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Hsg. Fin. Auth.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Hsg. Fin. Auth., 0.25%  RAN Series 2021</titleOfIssuer>
      <CUSIPMember>57587GLS2</CUSIPMember>
      <ISINId>US57587GLS20</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MA SF HOUSING REVENUE 9/12/85</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0272</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5473290.62</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5473290.62</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0023</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Hsg. Fin. Auth.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Hsg. Fin. Auth., 5.00% Bonds Series 2021 221</titleOfIssuer>
      <CUSIPMember>57587GER2</CUSIPMember>
      <ISINId>US57587GER20</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-06-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-06-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>MA SF HOUSING REVENUE 9/12/85</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0327</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>525148.88</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>525148.88</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Port Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Port Auth. Rev., 5.00% Bonds Series 2019 A</titleOfIssuer>
      <CUSIPMember>575896SV8</CUSIPMember>
      <ISINId>US575896SV84</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0340</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4890477.81</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4890477.81</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0020</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Port Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Port Auth. Rev., 5.00% Bonds Series 2019 C</titleOfIssuer>
      <CUSIPMember>575896UP8</CUSIPMember>
      <ISINId>US575896UP88</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0340</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>394067.43</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>394067.43</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 5.00% Bonds Series 2013 A, (Escrowed to Maturity)</titleOfIssuer>
      <CUSIPMember>576000PN7</CUSIPMember>
      <ISINId>US576000PN70</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-05-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-05-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-05-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0314</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>181772.10</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>181772.10</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 5.00% Bonds Series 2013 A, (Pre-Refunded to 5/15/2023 @ 100)</titleOfIssuer>
      <CUSIPMember>576000ZR7</CUSIPMember>
      <ISINId>US576000ZR74</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-05-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-05-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-05-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0319</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>267538.33</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>267538.33</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts School Bldg. Auth. Dedicated Sales Tax Rev., 5.00% Bonds Series 2013 A, (Pre-Refunded to 5/15/2023 @ 100)</titleOfIssuer>
      <CUSIPMember>576000ZT3</CUSIPMember>
      <ISINId>US576000ZT31</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-05-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-05-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-05-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0314</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4816960.65</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4816960.65</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0020</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts State College Bldg. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts State College Bldg. Auth. Rev., 3.43% Bonds Series 2003 B</titleOfIssuer>
      <CUSIPMember>575832KL3</CUSIPMember>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-05-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-05-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0343</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8597459.61</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8597459.61</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0036</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts State College Bldg. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts State College Bldg. Auth. Rev., 5.00% Bonds Series 2014 A, (Pre-Refunded to 5/1/2023 @ 100)</titleOfIssuer>
      <CUSIPMember>575832XE5</CUSIPMember>
      <ISINId>US575832XE51</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-05-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-05-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2033-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0314</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>504573.35</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>504573.35</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Wtr. Resources Auth. Wtr. &amp; Swr. Rev., 2.77% Series 2022, LOC TD Banknorth, NA, CP</titleOfIssuer>
      <CUSIPMember>57604YAX3</CUSIPMember>
      <otherUniqueId>JMB503000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-14</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-14</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-14</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>TD BANK NA WILMINGTON DE</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0260</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9001585.80</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9001585.80</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0037</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Melrose Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Melrose Gen. Oblig., 4.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>585565WU4</CUSIPMember>
      <ISINId>US585565WU47</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-09-21</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-09-21</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-09-21</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0361</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6183006.82</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6183006.82</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0026</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>North Middlesex Reg'l. School District</nameOfIssuer>
      <titleOfIssuer>North Middlesex Reg'l. School District, 3.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>661139NQ4</CUSIPMember>
      <ISINId>US661139NQ40</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-03</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0317</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10925847.48</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10925847.48</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0045</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Salem Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Salem Gen. Oblig., 3.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>7941992Q1</CUSIPMember>
      <ISINId>US7941992Q14</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-18</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-18</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-18</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0303</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>13382203.04</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>13382203.04</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0055</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Salisbury Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Salisbury Gen. Oblig., 4.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>795302KL1</CUSIPMember>
      <ISINId>US795302KL11</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-09-08</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-09-08</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-09-08</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0344</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3584663.33</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3584663.33</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Univ. of Massachusetts Bldg. Auth. Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Univ. of Massachusetts Bldg. Auth. Facilities Rev., 4.00% Bonds Series 2013 1, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>914440MJ8</CUSIPMember>
      <ISINId>US914440MJ88</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2043-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>38395000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>38395000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0159</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Univ. of Massachusetts Bldg. Auth. Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Univ. of Massachusetts Bldg. Auth. Facilities Rev., 5.00% Bonds Series 2013, (Pre-Refunded to 11/1/2022 @ 100)</titleOfIssuer>
      <CUSIPMember>914440MW9</CUSIPMember>
      <ISINId>US914440MW99</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2039-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3195000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3195000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Univ. of Massachusetts Bldg. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Univ. of Massachusetts Bldg. Auth. Rev., 5.00% Bonds Series 2021 1</titleOfIssuer>
      <CUSIPMember>914437VM7</CUSIPMember>
      <ISINId>US914437VM79</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>UNIV OF MASSACHUSETTS</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1665000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1665000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Waltham Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Waltham Gen. Oblig., 3.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>933254Y65</CUSIPMember>
      <ISINId>US933254Y655</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-04-28</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-04-28</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-04-28</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0340</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>14969400.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>14969400.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0062</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Wellesley Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Wellesley Gen. Oblig., 5.00% Bonds Series 2022</titleOfIssuer>
      <CUSIPMember>949493A75</CUSIPMember>
      <ISINId>US949493A750</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0309</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1041508.10</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1041508.10</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Wellesley Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Wellesley Gen. Oblig., 5.00% Bonds Series 2021</titleOfIssuer>
      <CUSIPMember>949493ZV5</CUSIPMember>
      <ISINId>US949493ZV55</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-04-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-04-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-04-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0000</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>151125.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>151125.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Westborough Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Westborough Gen. Oblig., 3.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>957144Q35</CUSIPMember>
      <ISINId>US957144Q358</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-03-29</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-03-29</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-03-29</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0339</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4669766.88</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4669766.88</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0019</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Woods Hole, Martha's Vineyard &amp; Nantucket Steamship Auth.</nameOfIssuer>
      <titleOfIssuer>Woods Hole, Martha's Vineyard &amp; Nantucket Steamship Auth., 3.25%  BAN Series 2022, (Massachusetts Gen. Oblig. Guaranteed)</titleOfIssuer>
      <CUSIPMember>980116MV6</CUSIPMember>
      <ISINId>US980116MV60</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-03-30</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-03-30</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-03-30</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>MASSACHUSETTS ST</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0331</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>19994266.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>19994266.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0083</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Worcester Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Worcester Gen. Oblig., 3.00%  BAN Series 2022</titleOfIssuer>
      <CUSIPMember>981306G31</CUSIPMember>
      <ISINId>US981306G313</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-03-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-03-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0326</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>21977841.60</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>21977841.60</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0091</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Worcester Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Worcester Gen. Oblig., 5.00% Bonds Series 2022</titleOfIssuer>
      <CUSIPMember>981306C76</CUSIPMember>
      <ISINId>US981306C767</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-02-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-02-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2023-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0312</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4419686.92</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4419686.92</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0018</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Guam Int'l. Arpt. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Guam Int'l. Arpt. Auth. Rev., 6.25% Bonds Series 2013 C, (Pre-Refunded to 10/1/2023 @ 100)</titleOfIssuer>
      <CUSIPMember>40064REN5</CUSIPMember>
      <ISINId>US40064REN52</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-10-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-10-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0376</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2228339.54</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2228339.54</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Kent Hosp. Fin. Auth. Hosp. Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Kent Hosp. Fin. Auth. Hosp. Facilities Rev., 2.62% Bonds (Spectrum Health Sys. Proj.) Series 2015 A, tender 05/30/2023</titleOfIssuer>
      <CUSIPMember>490580EG8</CUSIPMember>
      <ISINId>US490580EG82</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2023-05-30</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2023-05-30</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-01-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BEAUMONT-SPECTRUM HLTH</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>211</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0262</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Fidelity Revere Str Trust</nameOfIssuer>
      <titleOfIssuer>Fidelity Municipal Cash Central Fund, 1.99%</titleOfIssuer>
      <CUSIPMember>31635A204</CUSIPMember>
      <LEIID>549300BDV45LJNXBZC55</LEIID>
      <ISINId>US31635A2042</ISINId>
      <cik>0001022695</cik>
      <investmentCategory>Investment Company</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2026-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0199</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>233983693.26</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>233983693.26</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0969</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Fidelity Revere Str Trust</nameOfIssuer>
      <titleOfIssuer>Fidelity Tax-Free Cash Central Fund, 1.94%</titleOfIssuer>
      <CUSIPMember>31635A501</CUSIPMember>
      <LEIID>549300BDV45LJNXBZC55</LEIID>
      <cik>0001022695</cik>
      <investmentCategory>Investment Company</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2022-11-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-11-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0194</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>96398099.67</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>96398099.67</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0399</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <signature>
      <registrant>Fidelity Massachusetts Municipal Trust: Fidelity Massachusetts Municipal Money Market Fund</registrant>
      <signatureDate>2022-11-02</signatureDate>
      <signature>Laura M. Del Prato</signature>
      <nameOfSigningOfficer>Laura M. Del Prato</nameOfSigningOfficer>
      <titleOfSigningOfficer>President and Treasurer</titleOfSigningOfficer>
    </signature>
  </formData>
</edgarSubmission>
