<http://webisa.webdatacommons.org/prov/57900777>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/128424680> .
<http://webisa.webdatacommons.org/128424680>	<http://www.w3.org/ns/prov#value>	"Impurities, such as carbon dioxide or nitrogen, lower the therm factor." .
<http://webisa.webdatacommons.org/prov/46368065>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/128424680> .
<http://webisa.webdatacommons.org/128424680>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/128424680>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<themetricmaven.com> .