PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Answer: Although I have not had this problem (yet), I would try using a product called LimeAway - it is a liquid that cleans away mineral buildup in sinks and other places where deposits, including calcium, build up due to their high concentrations in the water supply.
http://www.w3.org/ns/prov#wasQuotedFrom
  • air-n-water.com