PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cobalt is a heavy metal element, whose multiple valence energy states allow it to link to several other atoms???as many as eight.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dyarrow.org