PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In chemistry, a chelate is a compound in which a central metal atom is bound to an organic molecule in two or more places, so named because the metal is figuratively gripped like a claw; a chelating agent uses a chelate to treat heavy metal poisoning.
http://www.w3.org/ns/prov#wasQuotedFrom
  • affixes.org