PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There are three related marketing joint ventures called Optimal Olefins (olefin), Optimal Glycols (ethylene oxide & ethylene glycol) and Optimal Chemicals (oxoalcohol and other chemicals).
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemicals-technology.com