PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At the output end 321, in the bottom of the reactor there is an opening, control valve 379 and bottom pipe 375 for permitting any solids, heavy oils and other material having a high boiling point which fall to the bottom of the reactor 320 to continue their fall and be transported to the input end of the second reactor 128.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com