PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Oxygen PSA units typically use zeolite molecular sieve to adsorb nitrogen, carbon dioxide, residual water vapor and other gases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ecplaza.net