PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Perhaps traces of sulfur from common refining is harmful ??? that is not clear as sulfur is an essential chemical in the human body.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thatsjustme.com