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<http://webisa.webdatacommons.org/421264367>	<http://www.w3.org/ns/prov#value>	"Engines and other elements of the lunar lander could be replaced at the EMLP." .
<http://webisa.webdatacommons.org/prov/443457556>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/421264367> .
<http://webisa.webdatacommons.org/421264367>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nasaspaceflight.com> .