PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, a material, such as ammonia, which can be photodissociated to form hydrogen species, can chemically reduce the target contaminants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com