PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although this can in part be explained by errors that were discovered in the materials, and weather and other conditions that always make Antarctic communications uncertain, there was cause for concern.
http://www.w3.org/ns/prov#wasQuotedFrom
  • state.gov