PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • We organized our studies around two key factors: the extent to which users specialize in particular topics, and homophily among users.
http://www.w3.org/ns/prov#wasQuotedFrom
  • grouplens.org