PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The fastest growth in 2012 came from North America, especially the US, where mobile search and display ad spending was up 220%.
http://www.w3.org/ns/prov#wasQuotedFrom
  • emarketer.com