PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Irritants in the water are a source of stress, and stress is a cause of disease in fish.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tropicalfishkeeping.com