PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • alkenyl olefins, vinyl aromatics such as styrene and styrene derivatives, and vinyl esters and ethers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com