PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, with respect to continuing pipeline surveillance, federal regulations require every pipeline operator to define a procedure for monitoring its pipelines and to take appropriate action in response to changing conditions, such as corrosion, failure, leakage or other developments.
http://www.w3.org/ns/prov#wasQuotedFrom
  • naturalgaswatch.org