PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The cathode is preferably a gas diffusion, multi-layered electrode (that can be provided in disc, coil, flat, cylindrical, or other form), containing a conducting mesh and gas-permeable and gas impermeable layers, the structure and technology of which assures the required electrical characteristics and necessary resource.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com