PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 4Add algae-eating organisms to your pond such as water snails and tadpoles to reduce the amount of algae in the water and prevent the growth of additional pond scum.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sfgate.com