About: http://webisa.webdatacommons.org/12632327

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Also, the bags are, Wikipedia assures me, mostly polyethylene ??? which means they are probably mostly made from natural gas or natural gas liquids (NGLs ??? propane, ethane,butane) not petroleum.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com