PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, various types of glass and crystals, including sapphire, and various types of plastics and polymers can be employed as the lightpipe materials.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com