PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Phosphoric acid, which can be helpful in removing these greenish stains, is commonly found in stain removing products, while oxalic acid is especially effective as a rust remover.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tips.net