PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The problem is that the slurry can produce a mixture of gases including carbon dioxide, ammonia, methane and hydrogen sulphide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • claimsdirect.co.uk