PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In many parts of the world, a three-digit emergency telephone number, such as 911 in the United States and Canada, can be dialed to access emergency services from any telephone connected to a Public Switched Telephone Network (PSTN).
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com