PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As engines can be thought of as a form of air pump, one can illustrate an interesting feature of BODHPS. As a matter of fact, I like to think of the inventers of the ICE as technicians looking at large air pumps of the time and thinking to themselves, Hmmm, what if I just change the timing of the valves a little?
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  • realworldio.com