PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Monday, May 5, is the expiration date for the Twitter???s lock-up, when employees and other shareholders, who have been prevented from selling their post its IPO, can now do so.
http://www.w3.org/ns/prov#wasQuotedFrom
  • techcrunch.com