PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • IMHO, part of the problem is dependency on a centralized supplier, making the supply vulnerable to such problems as political pressure, terrorist attacks, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org