PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A chemical is a physical hazard if it is a combustible liquid, a compressed gas, explosive, flammable or organic peroxide, an oxidyn, pyrophoric, unstable or water reactive.
http://www.w3.org/ns/prov#wasQuotedFrom
  • plattsburgh.edu