PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Sole-source, or no-bid contracts are usually reserved for purchasing items, such as proprietary software or specific equipment, that can only be obtained from one vendor.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chicagonewsroom.org