PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Integral twin-stage regulators are more commonly used and are more sensible for most installations but in a situation where there is an extreme distance between the tank and house or appliance, a two stage regulator system is often the best option.
http://www.w3.org/ns/prov#wasQuotedFrom
  • propane101.com