PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To define what counts as a ???substantially developed??? system for this purpose, the definition of ???existing electronic document receiving system??? uses evidence that system services or specifications are already established by existing contracts or other binding agreements.
http://www.w3.org/ns/prov#wasQuotedFrom
  • federalregister.gov