PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The air filter N will separate moisture or other undesirable material carried by the air which flows in through the air inlet F. The liquid also is provided with a filter means P which is at the bottom of the outlet tube Q. In FIGURE 7 is shown a fiow diagram illustrating the operation of the device of FIGS. 1-6.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com