PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The proppant consists of such materials as sand, glass beads, sintered bauxite, fine gravel and the like.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com