PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Styrene: a precursor to polystyrene and several copolymers widely used for packaging materials, construction materials, electronic parts, home appliances, household goods, home furnishings, toys, sporting goods and other products;
http://www.w3.org/ns/prov#wasQuotedFrom
  • sec.gov