PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The hydrogen sulfide and other chemicals that spew out of hydrothermal vents would be poisonous to most organisms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • starbulletin.com