PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Metal oxides, such as iron oxide, iron hydroxide, zinc oxide, zinc hydroxide, manganese oxide, and manganese hydroxide have an electronegative potential, meaning the potential is on the active or anodic end of the Emf series, with the active end relating to metals which tend to corrode.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com