PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The present invention relates to the art of detecting liquid level and more particularly to a system for detecting low liquid level and a probe to be used therewith.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com