PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Many factors can make water corrosive for copper pipes: dissolved salts and minerals, bacteria, and suspended solids, such as sand, sediment, and rust.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencebuddies.org