PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • He raised the possibility of using social media, such as Twitter and Facebook, to reach out to parents and teens with a double-pronged approach.
http://www.w3.org/ns/prov#wasQuotedFrom
  • yahoo.com