PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • FIG. 2 is a circuit schematic of a presently preferred representative embodiment of a reverse osmosis water filtration conductivity measurement and monitoring system.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au