PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The use of oxygen monitoring equipment is strongly recommended for enclosed areas where inert gases are being used.Fire and Explosion: Fire and explosion are the primary hazards associated with flammable gases, oxygen and other oxidizing gases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com