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      <fundAcqrdOrMrgdWthAnthrFlag>N</fundAcqrdOrMrgdWthAnthrFlag>
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      <adviser>
        <adviserName>FIDELITY MANAGEMENT &amp; RESEARCH COMPANY (FMR)</adviserName>
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        <adviserName>FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.</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>
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      <titleOfIssuer>Boston Wtr. &amp; Swr. Commission Rev., 1.68% Series 1994 A, LOC State Street Bank &amp; Trust Co., Boston VRDN</titleOfIssuer>
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    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Multi-family Hsg. Rev.</nameOfIssuer>
      <titleOfIssuer>FHLMC Massachusetts Dev. Fin. Agcy. Multi-family Hsg. Rev., 1.74% (Tammy Brook Apts. Proj.) Series 2009, LOC Freddie Mac VRDN</titleOfIssuer>
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        <nameOfNRSRO>N/A</nameOfNRSRO>
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      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>FREDDIE MAC</identityOfDemandFeatureIssuer>
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          <rating>N/A</rating>
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      </demandFeature>
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        <identityOfTheGuarantor>FREDDIE MAC</identityOfTheGuarantor>
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          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
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      <yieldOfTheSecurityAsOfReportingDate>0.0174</yieldOfTheSecurityAsOfReportingDate>
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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., 1.75% Series 2010 A1, LOC Citibank NA VRDN</titleOfIssuer>
      <CUSIPMember>57563CBF8</CUSIPMember>
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        <nameOfNRSRO>N/A</nameOfNRSRO>
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      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
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          <rating>N/A</rating>
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      <yieldOfTheSecurityAsOfReportingDate>0.0175</yieldOfTheSecurityAsOfReportingDate>
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      <percentageOfMoneyMarketFundNetAssets>0.0193</percentageOfMoneyMarketFundNetAssets>
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      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
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    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dept. of Trans. Metropolitan Hwy. Sys. Rev., 1.76% Series 2010 A2, LOC Barclays Bank PLC VRDN</titleOfIssuer>
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        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
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      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BARCLAYS BANK PLC</identityOfDemandFeatureIssuer>
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          <rating>N/A</rating>
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      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BARCLAYS BANK PLC</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
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          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
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      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0176</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>29325000.00</includingValueOfAnySponsorSupport>
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      <percentageOfMoneyMarketFundNetAssets>0.0263</percentageOfMoneyMarketFundNetAssets>
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      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.53% (Boston Univ. Proj.) Series U3, LOC Northern Trust Co. VRDN</titleOfIssuer>
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        <rating>N/A</rating>
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      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-10-01</finalLegalInvestmentMaturityDate>
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      <demandFeature>
        <identityOfDemandFeatureIssuer>NORTHERN TRUST CO CHICAGO</identityOfDemandFeatureIssuer>
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          <rating>N/A</rating>
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      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
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        <identityOfTheGuarantor>NORTHERN TRUST CO CHICAGO</identityOfTheGuarantor>
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          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
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      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0153</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>14900000.00</includingValueOfAnySponsorSupport>
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      <percentageOfMoneyMarketFundNetAssets>0.0134</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
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      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.63% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0163</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>11580000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>11580000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0104</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.66% (College of the Holy Cross Proj.) Series 2008 A, LOC JPMorgan Chase Bank 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>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>JPMORGAN CHASE BANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0166</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7680000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7680000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0069</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.70% (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>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</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>0.0170</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0096</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.70% (Governor Dummer Academy Issues Proj.) Series 2006, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RGN9</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-08-01</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>0.0170</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4295000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4295000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0039</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.70% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0170</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>27340000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>27340000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0245</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.72% Series 2014 M2, LOC Bank of New York, New York VRDN</titleOfIssuer>
      <CUSIPMember>57583UB56</CUSIPMember>
      <ISINId>US57583UB565</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2048-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>BANK OF NEW YORK MELLON</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 NEW YORK MELLON</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0172</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0085</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.72% (Partners HealthCare Sys. Proj.) Series 2011 K2, (Liquidity Facility Barclays Bank PLC) VRDN</titleOfIssuer>
      <CUSIPMember>57583R6F7</CUSIPMember>
      <ISINId>US57583R6F74</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0172</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0027</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.72% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0172</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3045000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3045000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0027</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.72% (Briarwood Retirement Cmnty. Proj.) Series 2004 A, LOC Manufacturers &amp; Traders Trust Co. VRDN</titleOfIssuer>
      <CUSIPMember>57583F5P2</CUSIPMember>
      <ISINId>US57583F5P29</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-01-01</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>0.0172</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3365000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3365000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0030</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.73% Series 2010, LOC Manufacturers &amp; Traders Trust Co. VRDN</titleOfIssuer>
      <CUSIPMember>57583R5Y7</CUSIPMember>
      <ISINId>US57583R5Y72</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-01-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>960000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>960000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.74% (Simmons College Proj.) Series G, LOC JPMorgan Chase Bank VRDN</titleOfIssuer>
      <CUSIPMember>57583RUV5</CUSIPMember>
      <ISINId>US57583RUV58</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-10-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK 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>JPMORGAN CHASE BANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4655000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4655000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0042</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.75% (Clark Univ. Proj.) LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57583RUU7</CUSIPMember>
      <ISINId>US57583RUU75</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-10-01</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>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0045</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.80% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0180</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3265000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3265000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0029</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.80% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0180</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>23915000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>23915000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0215</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.75% Series 2001 C, (Liquidity Facility Barclays Bank PLC) VRDN</titleOfIssuer>
      <CUSIPMember>575827X54</CUSIPMember>
      <ISINId>US575827X547</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2021-01-01</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>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>27135000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>27135000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0244</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.45% (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>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2049-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PRESIDENT &amp; FELLOWS HARVARD CO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0145</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>33350000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>33350000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0299</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.60% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0160</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>25800000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>25800000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0232</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.65% (Boston Univ. Proj.) Series H, LOC State Street Bank &amp; Trust Co., Boston VRDN</titleOfIssuer>
      <CUSIPMember>575850NF5</CUSIPMember>
      <ISINId>US575850NF59</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2029-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>STATE ST BK &amp; TR CO 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>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>0.0165</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>12100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>12100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0109</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.67% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0167</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>18075000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>18075000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0162</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.67% (Williams College Proj.) Series I VRDN</titleOfIssuer>
      <CUSIPMember>57586CEA9</CUSIPMember>
      <ISINId>US57586CEA99</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2033-07-01</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>0.0167</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9586000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9586000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0086</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.67% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PRESIDENT &amp; FELLOWS HARVARD 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>0.0167</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7790000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7790000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0070</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.68% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0168</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>15575000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>15575000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0140</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.68% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0168</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>24821000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>24821000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0223</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.68% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0168</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0093</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.70% (Southcoast Health Sys. Obligated Group Proj.) Series 2008 C, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586C6T7</CUSIPMember>
      <ISINId>US57586C6T73</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-08-01</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>0.0170</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0018</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.71% (Northeast Hosp. Corp. Proj.) Series 2004 G, LOC JPMorgan Chase Bank VRDN</titleOfIssuer>
      <CUSIPMember>57586CDV4</CUSIPMember>
      <ISINId>US57586CDV46</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK 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>JPMORGAN CHASE BANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0171</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8735000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8735000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0078</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% (Henry Heywood Memorial Hosp. Proj.) Series 2008 C, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586C7E9</CUSIPMember>
      <ISINId>US57586C7E95</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% (Henry Heywood Memorial Hosp. Proj.) Series 2009 C, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586EGT2</CUSIPMember>
      <ISINId>US57586EGT29</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>TD BANK NA WILMINGTON DE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5790000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5790000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0052</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% (Baystate Health Sys. Proj.) Series 2009 J2, LOC JPMorgan Chase Bank 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>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK NA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>JPMORGAN CHASE BANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>17220000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>17220000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0155</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.75% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9950000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9950000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0089</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.75% (Baystate Health Sys. Proj.) Series 2009 J1, LOC JPMorgan Chase Bank 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>JPMORGAN CHASE BANK 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>JPMORGAN CHASE BANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0090</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.79% (CIL Realty of Massachusetts Proj.) Series 2007, LOC HSBC Bank U.S.A., NA VRDN</titleOfIssuer>
      <CUSIPMember>57586CXK6</CUSIPMember>
      <ISINId>US57586CXK60</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>HSBC BANK USA 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>HSBC BANK USA NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0179</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>800000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>800000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0007</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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% (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>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>AMHERST COLLEGE</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0180</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4920000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4920000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0044</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.70% Series 2009 A, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>57586NDU2</CUSIPMember>
      <ISINId>US57586NDU28</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2043-01-01</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>0.0170</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2855000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2855000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0026</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Indl. Fin. Agcy. Indl. Dev. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Indl. Fin. Agcy. Indl. Dev. Rev., 1.80% LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>575855N23</CUSIPMember>
      <ISINId>US575855N234</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2024-12-01</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>0.0180</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2900000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2900000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0026</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Indl. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Indl. Fin. Agcy. Rev., 1.70% (Governor Dummer Academy Proj.) Series 1996, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>5759147M2</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0170</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0006</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Indl. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Indl. Fin. Agcy. Rev., 1.71% (Society for the Prevention of Cruelty to Animals Proj.) Series 1997, LOC TD Banknorth, NA VRDN</titleOfIssuer>
      <CUSIPMember>575925GN6</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2027-08-01</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>0.0171</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1885000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1885000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0017</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.63% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0163</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0021</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.71% Series 1999 B, LOC Landesbank Hessen-Thuringen 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>LANDESBANK HESS-THURNGN(UNGTD)</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>LANDESBANK HESS-THURNGN(UNGTD)</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0171</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2040000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2040000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0018</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Series 2008 1, (Liquidity Facility Barclays Bank PLC) VRDN</titleOfIssuer>
      <CUSIPMember>914440HE5</CUSIPMember>
      <ISINId>US914440HE56</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-05-01</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>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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>45150000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>45150000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0405</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Connecticut Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Connecticut Gen. Oblig., 1.73% Series 2016 C, (Liquidity Facility Bank of America NA) VRDN</titleOfIssuer>
      <CUSIPMember>20772JZ39</CUSIPMember>
      <ISINId>US20772JZ396</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-05-15</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0055</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Saint James Parish Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Saint James Parish Gen. Oblig., 1.78% (Nucor Steel Louisiana LLC Proj.) Series 2010 A1 VRDN</titleOfIssuer>
      <CUSIPMember>790103AG0</CUSIPMember>
      <ISINId>US790103AG04</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0178</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Saint James Parish Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Saint James Parish Gen. Oblig., 1.84% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0184</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0030</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Mobile Indl. Dev. Board Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Mobile Indl. Dev. Board Poll. Cont. Rev., 1.79% (Alabama Pwr. Co. Barry Plant Proj.) Series 2007 C VRDN</titleOfIssuer>
      <CUSIPMember>607167DW0</CUSIPMember>
      <ISINId>US607167DW00</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-06-01</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>0.0179</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>900000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>900000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0008</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>West Jefferson Indl. Dev.</nameOfIssuer>
      <titleOfIssuer>West Jefferson Indl. Dev., 1.79% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0179</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Valdez Marine Term. Rev.</nameOfIssuer>
      <titleOfIssuer>Valdez Marine Term. Rev., 1.65% (ConocoPhillips Proj.) Series 1994 C, (ConocoPhillips Co. Guaranteed) VRDN</titleOfIssuer>
      <CUSIPMember>919061EU1</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-05-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>CONOCOPHILLIPS INC</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>0.0165</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0021</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Lawrenceburg Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Lawrenceburg Poll. Cont. Rev., 1.87% (Indiana Michigan Pwr. Co. Proj.) Series I VRDN</titleOfIssuer>
      <CUSIPMember>520453AN1</CUSIPMember>
      <ISINId>US520453AN10</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2021-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>INDIANA MICHIGAN 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>0.0187</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Lawrenceburg Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Lawrenceburg Poll. Cont. Rev., 1.87% (Indiana Michigan Pwr. Co. Proj.) Series H VRDN</titleOfIssuer>
      <CUSIPMember>520453AM3</CUSIPMember>
      <ISINId>US520453AM37</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2021-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>INDIANA MICHIGAN 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>0.0187</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Delaware Econ. Dev. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Delaware Econ. Dev. Auth. Rev., 1.64% (Delmarva Pwr. &amp; Lt. Co. Proj.) Series 1999 A VRDN</titleOfIssuer>
      <CUSIPMember>246387JQ8</CUSIPMember>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2024-07-01</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>0.0164</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Delaware Econ. Dev. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Delaware Econ. Dev. Auth. Rev., 1.75% (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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Lincoln County Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Lincoln County Poll. Cont. Rev., 1.68% (PacifiCorp Proj.) Series 1994 VRDN</titleOfIssuer>
      <CUSIPMember>533485AZ1</CUSIPMember>
      <ISINId>US533485AZ11</ISINId>
      <investmentCategory>Variable Rate Demand Note</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2024-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PACIFICORP</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>0.0168</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Avon Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Avon Gen. Oblig., 2.25%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>054141JD9</CUSIPMember>
      <ISINId>US054141JD94</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-09-28</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-09-28</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-09-28</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0161</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1105225.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1105225.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0010</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Boston Wtr. &amp; Swr. Commission Rev.</nameOfIssuer>
      <titleOfIssuer>Boston Wtr. &amp; Swr. Commission Rev., 0.96% Series A, LOC State Street Bank &amp; Trust Co., Boston, CP</titleOfIssuer>
      <otherUniqueId>CCH366000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-03</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>0.0205</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1999700.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1999700.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0018</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Bourne Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Bourne Gen. Oblig., 2.25%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>102061TK4</CUSIPMember>
      <ISINId>US102061TK47</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-11-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-11-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-11-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0143</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2100882.39</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2100882.39</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0019</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Chicopee Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Chicopee Gen. Oblig., 2.25%  BAN Series 2017,</titleOfIssuer>
      <CUSIPMember>1685922E2</CUSIPMember>
      <ISINId>US1685922E20</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-10-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-10-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-10-05</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0159</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1306539.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1306539.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0012</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Framingham Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Framingham Gen. Oblig., 5.00% Bonds Series 2017</titleOfIssuer>
      <CUSIPMember>3516945H3</CUSIPMember>
      <ISINId>US3516945H33</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-12-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-12-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-12-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0149</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1135200.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1135200.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0010</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Franklin Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Franklin Gen. Oblig., 2.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>353838XU4</CUSIPMember>
      <ISINId>US353838XU40</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-05-18</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-05-18</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-05-18</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0149</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1202316.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1202316.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0011</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Gloucester Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Gloucester Gen. Oblig., 2.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>379713GK0</CUSIPMember>
      <ISINId>US379713GK06</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0139</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1500825.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1500825.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Harwich</nameOfIssuer>
      <titleOfIssuer>Harwich, 2.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>417884VK6</CUSIPMember>
      <ISINId>US417884VK65</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-07-13</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-07-13</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-07-13</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0141</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3009450.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3009450.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0027</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Bay Trans. Auth. Sales Tax Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Bay Trans. Auth. Sales Tax Rev., 5.00% Bonds Series 2006 C, (Pre-Refunded to 7/1/2018 @ 100)</titleOfIssuer>
      <CUSIPMember>575579SN8</CUSIPMember>
      <ISINId>US575579SN88</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0152</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1424472.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1424472.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy., 1.01% Series 5, LOC TD Banknorth, NA, CP</titleOfIssuer>
      <otherUniqueId>CDH227000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-04</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-04</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>0.0204</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1299779.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1299779.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0012</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 3.50% Bonds (Partners Healthcare Sys., Inc. Proj.) Series 2011 K-5, tender 01/18/2018</titleOfIssuer>
      <CUSIPMember>57583R6L4</CUSIPMember>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-18</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-18</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PARTNERS HEALTHCARE SYS INC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>20</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0188</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1401176.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1401176.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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 2011 K5, tender 01/18/2018</titleOfIssuer>
      <CUSIPMember>57583R6M2</CUSIPMember>
      <ISINId>US57583R6M26</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-18</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-18</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>PARTNERS HEALTHCARE SYS INC</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>20</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0218</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1847693.70</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1847693.70</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0017</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Fed. Hwy.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Fed. Hwy., 5.00% Bonds Series 2014 A</titleOfIssuer>
      <CUSIPMember>57583PGH6</CUSIPMember>
      <ISINId>US57583PGH64</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-06-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-06-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-06-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0149</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1524120.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1524120.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0014</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.00%  RAN Series 2017 A</titleOfIssuer>
      <CUSIPMember>57582RPS9</CUSIPMember>
      <ISINId>US57582RPS93</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-04-23</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-04-23</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-04-23</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0139</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>17969076.50</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>17969076.50</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0161</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.00%  RAN Series 2017 B</titleOfIssuer>
      <CUSIPMember>57582RPT7</CUSIPMember>
      <ISINId>US57582RPT76</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-05-21</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-05-21</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-05-21</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0142</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7406701.40</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7406701.40</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0066</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.14% Bonds Series 2012 D</titleOfIssuer>
      <CUSIPMember>57582PJ92</CUSIPMember>
      <ISINId>US57582PJ925</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0214</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2775000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2775000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0025</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 2.19% Bonds Series B</titleOfIssuer>
      <CUSIPMember>57582RGA8</CUSIPMember>
      <ISINId>US57582RGA86</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0214</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7100213.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7100213.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0064</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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>57582RGC4</CUSIPMember>
      <ISINId>US57582RGC43</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-03-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-03-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-03-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0156</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>402344.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>402344.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 5.00% Bonds Series 2008 A, (Pre-Refunded to 8/1/2018 @ 100)</titleOfIssuer>
      <CUSIPMember>57582PLG3</CUSIPMember>
      <ISINId>US57582PLG36</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-08-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-08-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0152</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1122374.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1122374.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0010</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.97% Bonds Series H1, tender 01/03/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>CEI492000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-03</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0206</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5299205.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5299205.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0048</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.97% Bonds Series H2, tender 01/04/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CW27</CUSIPMember>
      <otherUniqueId>CEJ095000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-04</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-04</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0200</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5299099.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5299099.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0048</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.99% Bonds Series H2, tender 01/08/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CW27</CUSIPMember>
      <otherUniqueId>CFC175000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-08</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-08</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-08</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0201</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5388490.80</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5388490.80</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0048</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.08% Bonds Series H1, tender 02/05/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>CFJ455000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-05</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0127</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3499300.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3499300.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0031</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.10% Bonds Series H1, tender 02/02/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>CGA591000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0128</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4399208.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4399208.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0039</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.10% Bonds Series H2, tender 02/06/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CW27</CUSIPMember>
      <otherUniqueId>CGA020000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-06</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-06</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-06</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0128</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3899220.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3899220.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0035</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.10% Bonds Series H1, tender 02/07/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>57586CV93</CUSIPMember>
      <otherUniqueId>CGB103000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-07</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>PARTNERS HEALTHCARE SYS INC</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0129</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3599244.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3599244.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0032</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 5.00% Bonds (CareGroup, Inc. Proj.) Series 2008 E1, (Pre-Refunded to 7/1/2018 @ 100)</titleOfIssuer>
      <CUSIPMember>57586C3Q6</CUSIPMember>
      <ISINId>US57586C3Q61</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2028-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0152</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1526220.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1526220.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0014</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 5.13% Bonds (CareGroup, Inc. Proj.) Series 2008 E1, (Pre-Refunded to 7/1/2018 @ 100)</titleOfIssuer>
      <CUSIPMember>57586C3R4</CUSIPMember>
      <ISINId>US57586C3R45</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2033-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0152</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1018090.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1018090.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 5.25% Bonds Series 2008, (Pre-Refunded to 7/1/2018 @ 100)</titleOfIssuer>
      <CUSIPMember>57586EH87</CUSIPMember>
      <ISINId>US57586EH874</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0157</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1395276.50</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1395276.50</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 5.25% Bonds (CareGroup, Inc. Proj.) Series 2008 D, (Pre-Refunded to 7/1/2018 @ 100)</titleOfIssuer>
      <CUSIPMember>57586C6G5</CUSIPMember>
      <ISINId>US57586C6G52</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0152</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1018700.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1018700.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 5.38% Bonds (CareGroup, Inc. Proj.) Series 2008 E1, (Pre-Refunded to 7/1/2018 @ 100)</titleOfIssuer>
      <CUSIPMember>57586C3P8</CUSIPMember>
      <ISINId>US57586C3P88</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-07-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-07-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2021-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0152</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2038640.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2038640.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0018</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Indl. Fin. Agcy. Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Indl. Fin. Agcy. Poll. Cont. Rev., 1.05% Bonds (New England Pwr. Co. Proj.) Series 1992, tender 01/03/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>575856BE8</CUSIPMember>
      <otherUniqueId>CFE566000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-03</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>NEW ENGLAND POWER CO</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0207</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1099846.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1099846.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0010</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Indl. Fin. Agcy. Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Indl. Fin. Agcy. Poll. Cont. Rev., 1.21% Bonds (New England Pwr. Co. Proj.) Series 93 B, tender 01/16/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>575856BG3</CUSIPMember>
      <otherUniqueId>CFJ416000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-16</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-16</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-16</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>NEW ENGLAND POWER CO</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0141</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>399960.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>399960.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Indl. Fin. Agcy. Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Indl. Fin. Agcy. Poll. Cont. Rev., 1.42% Bonds (New England Pwr. Co. Proj.) Series 93B, tender 02/02/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>575856BG3</CUSIPMember>
      <otherUniqueId>CGG796000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>NEW ENGLAND POWER CO</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0155</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8998830.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8998830.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0081</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Port Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Port Auth. Rev., 0.91% Series 12A, LOC TD Banknorth, NA, CP</titleOfIssuer>
      <otherUniqueId>CCB977000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-07</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>0.0131</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2998680.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2998680.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0027</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.98% Series C, LOC Barclays Bank PLC, CP</titleOfIssuer>
      <otherUniqueId>CDI775000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BARCLAYS BANK PLC</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0180</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4439600.40</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4439600.40</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0040</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.98% Series C, LOC Barclays Bank PLC, CP</titleOfIssuer>
      <otherUniqueId>CDI334000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-03</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BARCLAYS BANK PLC</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0207</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5699145.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5699145.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0051</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.98% Series C, LOC Barclays Bank PLC, CP</titleOfIssuer>
      <otherUniqueId>CDH963000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-04</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-04</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BARCLAYS BANK PLC</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0195</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7498800.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7498800.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0067</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.98% Series B, LOC Citibank NA, CP</titleOfIssuer>
      <otherUniqueId>CDJ166000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-09</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-09</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-09</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>CITIBANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0201</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9896931.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9896931.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0089</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 0.98% Series B, LOC Citibank NA, CP</titleOfIssuer>
      <otherUniqueId>CDJ906000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-12</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>CITIBANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0197</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8596732.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8596732.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0077</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.02% Series B, LOC Citibank NA, CP</titleOfIssuer>
      <otherUniqueId>CFE543000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-12</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-12</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-12</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>CITIBANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0133</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5497855.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5497855.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0049</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.10% Series C, LOC Barclays Bank PLC, CP</titleOfIssuer>
      <otherUniqueId>CFI394000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BARCLAYS BANK PLC</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0131</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10397920.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10397920.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0093</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.10% Series C, LOC Barclays Bank PLC, CP</titleOfIssuer>
      <otherUniqueId>CFJ446000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-07</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BARCLAYS BANK PLC</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0129</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2799412.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2799412.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0025</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.12% Series C, LOC Barclays Bank PLC, CP</titleOfIssuer>
      <otherUniqueId>CGA533000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-06</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-06</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-06</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>BARCLAYS BANK PLC</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0130</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8998200.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8998200.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0081</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.13% Series B, LOC Citibank NA, CP</titleOfIssuer>
      <otherUniqueId>CGC625000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-03-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-03-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-03-07</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>Y</securityGuaranteeFlag>
      <guarantor>
        <identityOfTheGuarantor>CITIBANK NA</identityOfTheGuarantor>
        <amountProvidedByGuarantor>1.0000</amountProvidedByGuarantor>
        <guarantorRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </guarantorRatingOrNRSRO>
      </guarantor>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0134</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>8496515.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>8496515.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0076</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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 B, (Escrowed to Maturity)</titleOfIssuer>
      <CUSIPMember>576000QH9</CUSIPMember>
      <ISINId>US576000QH93</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-15</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-15</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0225</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1191428.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1191428.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0011</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.08% Series 99, LOC State Street Bank &amp; Trust Co., Boston, CP</titleOfIssuer>
      <otherUniqueId>CFG454000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-03-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-03-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-03-07</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>0.0133</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7361538.45</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7361538.45</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0066</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.12% Series 16, LOC TD Banknorth, NA, CP</titleOfIssuer>
      <otherUniqueId>CFJ450000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-03-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-03-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-03-05</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>0.0135</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5397678.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5397678.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0048</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.12% Series 16, LOC TD Banknorth, NA, CP</titleOfIssuer>
      <otherUniqueId>CGA014000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-03-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-03-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-03-05</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>0.0135</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3798366.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3798366.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0034</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.14% Series 99, LOC State Street Bank &amp; Trust Co., Boston, CP</titleOfIssuer>
      <otherUniqueId>CGB090000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-04-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-04-04</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-04-04</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>0.0133</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10394800.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10394800.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0093</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Middleborough Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Middleborough Gen. Oblig., 2.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>596051UM2</CUSIPMember>
      <ISINId>US596051UM21</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-10-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-10-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-10-05</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0155</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1705763.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1705763.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Millis Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Millis Gen. Oblig., 3.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>601090PA5</CUSIPMember>
      <ISINId>US601090PA56</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-12-21</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-12-21</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-12-21</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0164</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3748692.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3748692.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0034</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Nantucket Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Nantucket Gen. Oblig., 2.00%  BAN Series B</titleOfIssuer>
      <CUSIPMember>630191D76</CUSIPMember>
      <ISINId>US630191D766</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-06-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-06-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0144</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3207456.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3207456.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0029</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>North Reading Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>North Reading Gen. Oblig., 2.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>661802ZK7</CUSIPMember>
      <ISINId>US661802ZK71</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-06-14</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-06-14</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-06-14</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0146</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2156771.18</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2156771.18</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0019</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Orleans Gen. Oblig. Anticipation Notes</nameOfIssuer>
      <titleOfIssuer>Orleans Gen. Oblig. Anticipation Notes, 2.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>686628VC9</CUSIPMember>
      <ISINId>US686628VC90</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-09</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-09</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-02-09</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0139</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2681608.69</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2681608.69</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0024</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Westfield Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Westfield Gen. Oblig., 2.25%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>960096W92</CUSIPMember>
      <ISINId>US960096W924</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-10-31</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-10-31</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-10-31</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0149</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1323218.75</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1323218.75</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0012</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Winchester Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Winchester Gen. Oblig., 2.00%  BAN Series 2017</titleOfIssuer>
      <CUSIPMember>973024P48</CUSIPMember>
      <ISINId>US973024P487</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-06-27</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-06-27</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-06-27</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0143</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4713066.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4713066.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0042</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Jefferson County Poll. Cont. Rev.</nameOfIssuer>
      <titleOfIssuer>Jefferson County Poll. Cont. Rev., 1.16% Bonds Series 01A, tender 01/10/2018, CP Mode</titleOfIssuer>
      <CUSIPMember>473044BV6</CUSIPMember>
      <otherUniqueId>CFG421000</otherUniqueId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-10</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-10</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2018-01-10</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>Y</securityEnhancementsFlag>
      <enhancementProvider>
        <identityOfTheEnhancementProvider>LOUISVILLE GAS &amp; ELECTRIC CO</identityOfTheEnhancementProvider>
        <typeOfEnhancement>OBLIGOR</typeOfEnhancement>
        <amountProvidedByEnhancement>1.0000</amountProvidedByEnhancement>
        <enhancementRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </enhancementRatingOrNRSRO>
      </enhancementProvider>
      <yieldOfTheSecurityAsOfReportingDate>0.0216</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>699769.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>699769.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0006</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Main Street Natural Gas, Inc. Georgia Gas Proj. Rev.</nameOfIssuer>
      <titleOfIssuer>Main Street Natural Gas, Inc. Georgia Gas Proj. Rev., 1.81% Bonds Series 2010 A2, tender 01/04/2018, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>56036YEM3</CUSIPMember>
      <ISINId>US56036YEM30</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-04-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BANK OF CANADA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>94</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0180</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0001</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Main Street Natural Gas, Inc. Georgia Gas Proj. Rev.</nameOfIssuer>
      <titleOfIssuer>Main Street Natural Gas, Inc. Georgia Gas Proj. Rev., 1.81% Bonds Series 2010 A1, tender 01/04/2018, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>56036YEL5</CUSIPMember>
      <ISINId>US56036YEL56</ISINId>
      <investmentCategory>Other Municipal Security</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-04-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2040-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>ROYAL BANK OF CANADA</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>94</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>N</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0180</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Billerica Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Billerica Gen. Oblig., 1.86% Bonds Series Solar 17 0027, tender 02/08/2018, (Liquidity Facility U.S. Bank NA, Cincinnati)</titleOfIssuer>
      <CUSIPMember>27884FZ52</CUSIPMember>
      <ISINId>US27884FZ523</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-08</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-08</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-02-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>US BANK NA CINCINNATI OHIO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>41</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0186</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>899856.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>899856.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0008</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Commonwealth Trans. Fund Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Commonwealth Trans. Fund Rev., 1.68% Participating VRDN Series 2016 20, (Liquidity Facility U.S. Bank NA, Cincinnati)</titleOfIssuer>
      <CUSIPMember>27884FQ78</CUSIPMember>
      <ISINId>US27884FQ787</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2044-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>US BANK NA CINCINNATI OHIO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>4</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0168</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3190000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3190000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0029</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy., 1.74% Participating VRDN Series Floaters XM 03 68, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033UAY5</CUSIPMember>
      <ISINId>US88033UAY55</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-02-01</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.73% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1650000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1650000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0015</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.73% Participating VRDN Series 2016 XF2207, (Liquidity Facility Citibank NA)</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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2041-07-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3250000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3250000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0029</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.73% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Dev. Fin. Agcy. Rev.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Dev. Fin. Agcy. Rev., 1.74% Participating VRDN Series MS 3373, (Liquidity Facility Morgan Stanley Bank, West Valley City Utah)</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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-10-01</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>900000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>900000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0008</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.73% Participating VRDN Series Floaters XM 03 72, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033UBG3</CUSIPMember>
      <ISINId>US88033UBG31</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2027-04-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>4600000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>4600000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0041</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.73% Participating VRDN Series Floaters 16 ZF2364, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033UGF0</CUSIPMember>
      <ISINId>US88033UGF03</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-09-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5335000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5335000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0048</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.73% Participating VRDN Series Floaters XG 01 42, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>88033YHQ7</CUSIPMember>
      <ISINId>US88033YHQ70</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-09-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1510000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1510000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0014</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.73% Participating VRDN Series 16 XF0374, (Liquidity Facility Bank of America NA)</titleOfIssuer>
      <CUSIPMember>88033ME94</CUSIPMember>
      <ISINId>US88033ME946</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-03-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0090</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.74% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>18255000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>18255000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0164</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.74% Participating VRDN Series 16 XM 03 35, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033SXY5</CUSIPMember>
      <ISINId>US88033SXY52</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2038-04-01</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0067</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.75% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.76% Bonds Series Clipper 09 67, tender 01/04/2018, (Liquidity Facility State Street Bank &amp; Trust Co., Boston)</titleOfIssuer>
      <CUSIPMember>18886PA39</CUSIPMember>
      <ISINId>US18886PA398</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-04</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2026-11-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>STATE ST BK &amp; TR CO BOSTON</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>6</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>25500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>25500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0229</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.89% Bonds Series Clipper 09 69, tender 03/08/2018, (Liquidity Facility State Street Bank &amp; Trust Co., Boston)</titleOfIssuer>
      <CUSIPMember>18886PB79</CUSIPMember>
      <ISINId>US18886PB792</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-03-08</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-03-08</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2024-09-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>STATE ST BK &amp; TR CO BOSTON</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>69</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0190</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5513014.60</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5513014.60</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0049</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Gen. Oblig.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Gen. Oblig., 1.89% Bonds Series Clipper 09 37, tender 03/08/2018, (Liquidity Facility State Street Bank &amp; Trust Co., Boston)</titleOfIssuer>
      <CUSIPMember>18886PRV9</CUSIPMember>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-03-08</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-03-08</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2025-08-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>STATE ST BK &amp; TR CO BOSTON</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>69</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0188</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>12000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>12000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0108</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% Participating VRDN Series Floaters XF 00 47, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033LDS5</CUSIPMember>
      <ISINId>US88033LDS51</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-07-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5550000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5550000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0050</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Participating VRDN Series 16 XM0217, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033SFK5</CUSIPMember>
      <ISINId>US88033SFK50</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-11-15</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>10700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>10700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0096</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Health and Edl. Facilities Auth.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Health and Edl. Facilities Auth., 1.74% Participating VRDN Series XL 00 17, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033SVT8</CUSIPMember>
      <ISINId>US88033SVT85</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-12-15</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>2550000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>2550000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0023</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% Participating VRDN Series Floaters YX 10 29, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033UHW2</CUSIPMember>
      <ISINId>US88033UHW27</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-11-15</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1610000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1610000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0014</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% Participating VRDN Series 15 XF2203, (Liquidity Facility Citibank NA)</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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7460000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7460000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0067</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% Participating VRDN Series Floaters XX 10 08, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033M6J1</CUSIPMember>
      <ISINId>US88033M6J13</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-10-15</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0057</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% Participating VRDN Series ROC II R  14021, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>576000MY6</CUSIPMember>
      <ISINId>US576000MY62</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2024-08-15</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0049</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Participating VRDN Series 16 XM0239, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033SHZ0</CUSIPMember>
      <ISINId>US88033SHZ02</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2037-08-15</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9010000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9010000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0081</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Participating VRDN Series EGL 15 002, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>576000SS3</CUSIPMember>
      <ISINId>US576000SS31</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>18600000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>18600000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0167</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Participating VRDN Series EGL 15 001, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>576000SQ7</CUSIPMember>
      <ISINId>US576000SQ74</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2032-08-15</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5900000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5900000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0053</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% 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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>5900000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>5900000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0053</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Participating VRDN Series EGL 15 003, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>576000SU8</CUSIPMember>
      <ISINId>US576000SU86</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>6000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>6000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0054</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Participating VRDN Series Floaters XM 04 30, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033UPE3</CUSIPMember>
      <ISINId>US88033UPE37</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2030-08-15</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>3335000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>3335000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0030</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.75% Participating VRDN Series 16 ZM0173, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>88033MZE0</CUSIPMember>
      <ISINId>US88033MZE01</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2041-10-15</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>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.76% Bonds Series Solar 17 13, tender 01/04/2018, (Liquidity Facility U.S. Bank NA, Cincin</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>2018-01-04</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-04</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-08-15</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>Y</securityDemandFeatureFlag>
      <demandFeature>
        <identityOfDemandFeatureIssuer>US BANK NA CINCINNATI OHIO</identityOfDemandFeatureIssuer>
        <amountProvidedByDemandFeatureIssuer>1.0000</amountProvidedByDemandFeatureIssuer>
        <remainingPeriodDemandFeature>6</remainingPeriodDemandFeature>
        <demandFeatureConditionalFlag>Y</demandFeatureConditionalFlag>
        <demandFeatureRatingOrNRSRO>
          <nameOfNRSRO>N/A</nameOfNRSRO>
          <rating>N/A</rating>
        </demandFeatureRatingOrNRSRO>
      </demandFeature>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0006</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Massachusetts Wtr. Resources Auth.</nameOfIssuer>
      <titleOfIssuer>Massachusetts Wtr. Resources Auth., 1.73% Participating VRDN Series XM 02 87, (Liquidity Facility JPMorgan Chase Bank)</titleOfIssuer>
      <CUSIPMember>88033SNK6</CUSIPMember>
      <ISINId>US88033SNK68</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2035-08-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.73% Participating VRDN Series Floaters XF 25 02, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>88033YWH0</CUSIPMember>
      <ISINId>US88033YWH07</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2030-08-01</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>0.0173</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1500000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1500000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0013</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>RBC Muni. Products, Inc. Trust</nameOfIssuer>
      <titleOfIssuer>RBC Muni. Products, Inc. Trust, 1.76% Participating VRDN Series 2016 E74, (Liquidity Facility Royal Bank of Canada)</titleOfIssuer>
      <CUSIPMember>74926YW98</CUSIPMember>
      <ISINId>US74926YW985</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2031-08-01</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>0.0176</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>9805000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>9805000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0088</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <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., 1.74% Participating VRDN Series XL 0042, (Liquidity Facility Morgan Stanley Bank, West Valley City</titleOfIssuer>
      <CUSIPMember>88033UZU6</CUSIPMember>
      <ISINId>US88033UZU68</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2047-11-01</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>0.0174</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Hamilton County HealthCare Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Hamilton County HealthCare Facilities Rev., 1.77% Participating VRDN Series XF 10 50, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88033MNP8</CUSIPMember>
      <ISINId>US88033MNP85</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2042-06-01</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>0.0177</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>1000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>1000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0009</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Middletown Hosp. Facilities Rev.</nameOfIssuer>
      <titleOfIssuer>Middletown Hosp. Facilities Rev., 1.89% Participating VRDN Series Floaters 00 31 44, (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>2018-02-09</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-09</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>0.0189</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>590000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>590000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0005</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Ohio Higher Edl. Facility Commission Rev.</nameOfIssuer>
      <titleOfIssuer>Ohio Higher Edl. Facility Commission Rev., 1.89% Participating VRDN Series 2017, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PGX1</CUSIPMember>
      <ISINId>US76252PGX15</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-09</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-09</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2046-01-15</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>0.0188</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>New Jersey St. Trans. Trust Fund Auth.</nameOfIssuer>
      <titleOfIssuer>New Jersey St. Trans. Trust Fund Auth., 1.88% Participating VRDN Series Floaters 16 XF1059, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88033UFY0</CUSIPMember>
      <ISINId>US88033UFY01</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-12-15</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>0.0188</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Union County Impt. Auth.</nameOfIssuer>
      <titleOfIssuer>Union County Impt. Auth., 1.76% Participating VRDN Series XF 10 19, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88033L7L7</CUSIPMember>
      <ISINId>US88033L7L77</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-05-01</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>0.0176</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>400000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>400000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0004</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Union County Impt. Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Union County Impt. Auth. Rev., 1.77% Participating VRDN Series XG 00 57, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88033SSM7</CUSIPMember>
      <ISINId>US88033SSM79</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2034-03-01</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>0.0177</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Chicago Transit Auth.</nameOfIssuer>
      <titleOfIssuer>Chicago Transit Auth., 1.75% Participating VRDN Series Floaters XM 04 50, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>88033URP6</CUSIPMember>
      <ISINId>US88033URP65</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2036-12-01</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>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>700000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>700000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0006</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Dignity Health</nameOfIssuer>
      <titleOfIssuer>Dignity Health, 1.87% 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>2018-02-09</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-09</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>0.0187</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>595000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>595000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0005</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Colorado Health Facilities Auth. Rev.</nameOfIssuer>
      <titleOfIssuer>Colorado Health Facilities Auth. Rev., 1.86% Participating VRDN Series Floaters XF 22 41, (Liquidity Facility Citibank NA)</titleOfIssuer>
      <CUSIPMember>19648AMR3</CUSIPMember>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2041-10-01</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>0.0185</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Denver City &amp; County Arpt. Rev.</nameOfIssuer>
      <titleOfIssuer>Denver City &amp; County Arpt. Rev., 1.77% Participating VRDN Series Floaters XF 10 36, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88033L6M6</CUSIPMember>
      <ISINId>US88033L6M69</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2043-11-15</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>0.0177</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>300000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>300000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0003</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Omaha Pub. Pwr. District Elec. Rev.</nameOfIssuer>
      <titleOfIssuer>Omaha Pub. Pwr. District Elec. Rev., 1.78% Participating VRDN Series 16 XF1053, (Liquidity Facility Deutsche Bank AG New York Branch)</titleOfIssuer>
      <CUSIPMember>88033MD79</CUSIPMember>
      <ISINId>US88033MD799</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2049-02-01</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>0.0178</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Missoula Mont Wtr. Sys. Rev.</nameOfIssuer>
      <titleOfIssuer>Missoula Mont Wtr. Sys. Rev., 1.89% Participating VRDN Series Floaters 011, (Liquidity Facility Barclays Bank PLC)</titleOfIssuer>
      <CUSIPMember>76252PHX0</CUSIPMember>
      <ISINId>US76252PHX06</ISINId>
      <investmentCategory>Tender Option Bond</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>N/A</nameOfNRSRO>
        <rating>N/A</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2018-02-09</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-02-09</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-06-21</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>0.0188</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>200000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>200000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0002</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>Y</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>Fidelity Revere Str Trust</nameOfIssuer>
      <titleOfIssuer>Fidelity Tax-Free Cash Central Fund, 1.75%</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>2018-01-05</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2018-01-05</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2033-07-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0175</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>161911683.76</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>161911683.76</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.1453</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
    </scheduleOfPortfolioSecuritiesInfo>
    <signature>
      <registrant>Fidelity Massachusetts Municipal Trust: Fidelity Massachusetts AMT Tax-Free Money Market Fund</registrant>
      <signatureDate>2018-01-03</signatureDate>
      <signature>Stephanie Dorsey</signature>
      <nameOfSigningOfficer>Stephanie Dorsey</nameOfSigningOfficer>
      <titleOfSigningOfficer>President and Treasurer</titleOfSigningOfficer>
    </signature>
  </formData>
</edgarSubmission>
