PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The software tracks chatter on blogs, Twitter, YouTube, chat rooms and other media that are not password protected. (Sites like Facebook and MySpace are not scanned because they are not public.) It tracks the volume of chatter and compares it to the volume of talk about competitors, and also divides the results into positive and negative conversations.
http://www.w3.org/ns/prov#wasQuotedFrom
  • clickz.com