| http://www.w3.org/ns/prov#value | - You answer, reporting your fuel state in thousands of pounds: State 3.5, meaning I have 3,500 pounds of fuel. (The reason we measure the fuel by weight - yes, I know it should be by mass [like Europeans who measure in kilos"] and pounds" is a measure of force, you do not need to write me about it - rather than by volume is that the volume of a liquid, say fuel, varies with temperature and pre
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