PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Industrial processes in which metal surfaces, particularly surfaces of iron and iron alloys, come into contact with oils or oil-containing aqueous emulsions under extreme temperature and pressure conditions are hampered by resultant corrosion of the metal surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com