PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These react together in a series of complex reactions to form insoluble silicates, carbonates (including from CO2, such as in the air or which is dissolved within the added water), sulfates, and other salts or products of calcium and magnesium, together with hydrates of these salts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au