About: http://webisa.webdatacommons.org/142352490

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	Suitable examples include propylene, butylene, hexylene, dimethylethylene and, particularly preferably, ethylene.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com