About: http://webisa.webdatacommons.org/187700033

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	wherein R3 is a hydrogen or a methyl group, R4 is a divalent hydrocarbon group having 1-20 carbon atoms, which optionally contains one or more ether groups, R5 is a polyoxyalkylene polymer residue, and a is a positive integer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com