PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One of the advantages of such a system is that it can work with solvents in the vapor form, in the liquid form or both, and it can work with a variety of different solvents such as 1.1.1. trichloroethane, trichloroethylene, methylene chloride, perchloroethylene, Freon, aldehydes, alcohols, amines, ketones, aromatics, or other solvents which may or may not be heavier than air.
http://www.w3.org/ns/prov#wasQuotedFrom
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