PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Atmospheric gases, such as carbon dioxide and nitrogen which are less expensive than other common blowing agents and are unregulated can be used in the process.
http://www.w3.org/ns/prov#wasQuotedFrom
  • designnews.com