| http://www.w3.org/ns/prov#value | - This is even more so in parts of the world where reliable electricity supplies and mains gas are not available, causing the population to rely on fuel sources such as Liquefied Petroleum Gas (LPG), kerosene (also known as parrafin), wood, dried animal dung, oil from animals such as whales and seals and other forms of fuels distilled from crude oil, coal and shale.
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