PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Such smooth surfaces as manifested by a lack of pores common to the prior art is believed to contribute to the high degree of oxidation resistance, i.e. a lack of tarnish over a long period of time, e.g. days, weeks and often months or longer.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es