PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Whether propylene oxide is a toxic gas or liquid would depend on where you live and time of year, since its boiling point is 34 deg.
http://www.w3.org/ns/prov#wasQuotedFrom
  • flavoralchemy.com