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		<nameOfIssuer>ALPHABET INC</nameOfIssuer>
		<titleOfClass>CAP STK CL C</titleOfClass>
		<cusip>02079K107</cusip>
		<value>6107231</value>
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		<nameOfIssuer>ALPHABET INC</nameOfIssuer>
		<titleOfClass>CAP STK CL A</titleOfClass>
		<cusip>02079K305</cusip>
		<value>1274681</value>
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			<sshPrnamt>618021</sshPrnamt>
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			<Sole>618021</Sole>
			<Shared>0</Shared>
			<None>0</None>
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		<nameOfIssuer>BOSTON PROPERTIES INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>101121101</cusip>
		<value>886393</value>
		<shrsOrPrnAmt>
			<sshPrnamt>8753638</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>8753638</Sole>
			<Shared>0</Shared>
			<None>0</None>
		</votingAuthority>
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		<nameOfIssuer>CANADIAN NATL RY CO</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>136375102</cusip>
		<value>2410839</value>
		<shrsOrPrnAmt>
			<sshPrnamt>20773418</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>20773418</Sole>
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			<None>0</None>
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		<nameOfIssuer>CANADIAN PAC RY LTD</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>13645T100</cusip>
		<value>4260709</value>
		<shrsOrPrnAmt>
			<sshPrnamt>11172077</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>11172077</Sole>
			<Shared>0</Shared>
			<None>0</None>
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	<infoTable>
		<nameOfIssuer>CHARTER COMMUNICATIONS INC N</nameOfIssuer>
		<titleOfClass>CL A</titleOfClass>
		<cusip>16119P108</cusip>
		<value>6326233</value>
		<shrsOrPrnAmt>
			<sshPrnamt>10252881</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>10252881</Sole>
			<Shared>0</Shared>
			<None>0</None>
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	<infoTable>
		<nameOfIssuer>KLA CORP</nameOfIssuer>
		<titleOfClass>COM NEW</titleOfClass>
		<cusip>482480100</cusip>
		<value>10110</value>
		<shrsOrPrnAmt>
			<sshPrnamt>30600</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>30600</Sole>
			<Shared>0</Shared>
			<None>0</None>
		</votingAuthority>
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	<infoTable>
		<nameOfIssuer>LAM RESEARCH CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>512807108</cusip>
		<value>10298</value>
		<shrsOrPrnAmt>
			<sshPrnamt>17300</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>17300</Sole>
			<Shared>0</Shared>
			<None>0</None>
		</votingAuthority>
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		<nameOfIssuer>MICROSOFT CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>594918104</cusip>
		<value>4829372</value>
		<shrsOrPrnAmt>
			<sshPrnamt>20483405</sshPrnamt>
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		<votingAuthority>
			<Sole>20483405</Sole>
			<Shared>0</Shared>
			<None>0</None>
		</votingAuthority>
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		<nameOfIssuer>MOODYS CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>615369105</cusip>
		<value>1959715</value>
		<shrsOrPrnAmt>
			<sshPrnamt>6562790</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>6562790</Sole>
			<Shared>0</Shared>
			<None>0</None>
		</votingAuthority>
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	<infoTable>
		<nameOfIssuer>S&amp;P GLOBAL INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>78409V104</cusip>
		<value>2065510</value>
		<shrsOrPrnAmt>
			<sshPrnamt>5853460</sshPrnamt>
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			<Sole>5853460</Sole>
			<Shared>0</Shared>
			<None>0</None>
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		<nameOfIssuer>UNION PAC CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>907818108</cusip>
		<value>1326105</value>
		<shrsOrPrnAmt>
			<sshPrnamt>6016539</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>6016539</Sole>
			<Shared>0</Shared>
			<None>0</None>
		</votingAuthority>
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		<nameOfIssuer>VISA INC</nameOfIssuer>
		<titleOfClass>COM CL A</titleOfClass>
		<cusip>92826C839</cusip>
		<value>2976477</value>
		<shrsOrPrnAmt>
			<sshPrnamt>14057890</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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			<Shared>0</Shared>
			<None>0</None>
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