PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Studies suggest that sites such as Facebook and Twitter, depending upon how they???re used, could positively or negatively affect student grades.
http://www.w3.org/ns/prov#wasQuotedFrom
  • world.edu