PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It???s a highly volatile industrial chemical used to make polystyrene and resins, such as reinforced plastic and rubbers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nachi.org