PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???The best source of omega-3 is oily fish such as tuna, mackerel and salmon,??? he said.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thewest.com.au