About: http://webisa.webdatacommons.org/5080213

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	Polyolefin materials such as polyethylene and propylene, common polyolefin compositions, have been available in a variety of grades and forms for many years.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com