PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • that you thought you’d lost forever, such as photos & videos, messages, contacts, call logs, memos and more! There are three kinds of recovery mode: to recover data directly from the iOS device and to retrieve previous data by extracting it from iTunes and iCloud backup! 

Please read more:

Delete iPhone Data Permanently Before Selling
http://www.w3.org/ns/prov#wasQuotedFrom
  • photosynth.net