PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Existing liquid level measuring devices employ float switches, mechanical tipping mechanisms, some type of mechanical to electrical transduction, or measurement of a variable liquid characteristic such as resistance, capacitance, or inductance to determine the level of the liquid being measured.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com