<http://webisa.webdatacommons.org/prov/300550377>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/439022913> .
<http://webisa.webdatacommons.org/439022913>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<venturebeat.com> .
<http://webisa.webdatacommons.org/439022913>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/439022913>	<http://www.w3.org/ns/prov#value>	"Epstein said about two-thirds of the cost of commercial solar systems involves land, labor costs, and other factors that solar developers can???t directly control." .
<http://webisa.webdatacommons.org/prov/311561017>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/439022913> .