PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Such additives comprise detergent packages, pour point depressants, viscosity index improvers and other additives such as anti-oxidants, additives with a detergent action, viscosity increasing compounds, anti-corrosives, anti-foaming agents, agents to improve the lubricating effect and other compounds which are usually added to lubricating oils.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com