PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A fire retardant is a substance that reduces flammability of fuels or delays their combustion.[1][2] This includes chemical agents, but may also include substances that work by physical action, such as cooling the fuels, such as fire-fighting foams and fire-retardant gels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org