PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • And graphene is a VERY interesting ??? AND essentially NEW ??? material, having been kind of ???rediscovered??? in 2004.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wattsupwiththat.com