PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Keeping your birds hydrated is an important part of keeping a pet bird but you will find that water cups made of plastic tend to get brittle when they are used in bird cages that are often put outdoors or in places exposed to sunlight.
http://www.w3.org/ns/prov#wasQuotedFrom
  • petstore.com