PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But the fact that they are easily available is a big part of it, I would guess. (There are some organizations that provide them free to young or low-income people.
http://www.w3.org/ns/prov#wasQuotedFrom
  • patheos.com