PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 'Free' is an offer he is hard to refuse Enterprise IM can attribute some of its slow start to a close relative: free IM offerings like AOL Instant Messenger and Yahoo Messenger, which account for a large part of the 320 million consumer IM users worldwide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • techtarget.com