<http://webisa.webdatacommons.org/172884199>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/281506894>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/172884199> .
<http://webisa.webdatacommons.org/172884199>	<http://www.w3.org/ns/prov#value>	"But nevertheless oil is a great heat conductor and air is one of the best insulators we have." .
<http://webisa.webdatacommons.org/172884199>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<slashdot.org> .