PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Mass nouns usually are singular: You say you have less money not because money is a mass noun but because money is singular.
http://www.w3.org/ns/prov#wasQuotedFrom
  • grammarunderground.com