PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Citrus fruits such as oranges and grapefruits are a good source of vitamins C and B, which help to improve immune function.
http://www.w3.org/ns/prov#wasQuotedFrom
  • emc.org