PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This rule proposes to put particulate limits on hydronic heater stacks and, therefore, opacity is the best tool to use because it was created for the purpose of using on stacks or chimneys as an indicator of particulate issues.
http://www.w3.org/ns/prov#wasQuotedFrom
  • in.gov