PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Alkenyl and alkynyl groups preferably have from 2 to 12 carbon atoms, especially 2 to 6 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com