<http://webisa.webdatacommons.org/181862226>	<http://www.w3.org/ns/prov#value>	"Asphalt is a petroleum product refined from crude oil; coal tar is derived from the distillation of coal." .
<http://webisa.webdatacommons.org/prov/429537210>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/181862226> .
<http://webisa.webdatacommons.org/181862226>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<alpineroofingconstruction.com> .
<http://webisa.webdatacommons.org/181862226>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .