PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Voltage to the relay but not to the pump would tell you the relay needs to be replaced, or there is an open circuit between the relay and pump.
http://www.w3.org/ns/prov#wasQuotedFrom
  • counterman.com