prov:value
| - Examples of possible fuel sources include hydrocarbon fuels (such as gasoline, diesel, ethanol, methanol, kerosene, and the like; gaseous fuels, such as natural gas, propane, butane, and so forth), and alternative fuels (such as hydrogen, biofuels, dimethyl ether, and so forth), as well as combinations comprising at least one of the foregoing fuels.
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