PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Alternative strategies to controlling spam, such as anti-spam legislation, are hampered by the lack of a clear definition over what constitutes spam, while Jupiter Research analyst Jared Blank argues, The true problem is that spam is effective.
http://www.w3.org/ns/prov#wasQuotedFrom
  • acm.org