| http://www.w3.org/ns/prov#value | - Preferred hydrocarbons include aliphatic or aromatic hydrocarbon fluids including, for example, saturated hydrocarbons containing from 3 to 8 carbon atoms, such as propane, n-butane, isobutane, n-pentane, isopentane, neopentane, n-hexane, isohexane, cyclohexane and other saturated C6 to C8 hydrocarbons.
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