PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Firstly, sensing vibrations ensures that each time the pump operates, power will be supplied to the electrodes to introduce ions, such as copper and silver ions, into the pool water to reliably maintain the copper residual within the desired parameters to help control algae, bacteria, and virus within the pool water.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com