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   Coal
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| appearance as argument number 1 |
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| (documentation Coal EnglishLanguage "Coal is a black or brownish black solid combustible substance formed by the partial decomposition of vegetable matter without free access of air and under the influence of moisture and often increased pressure and temperature. Coal is a sedimentary rock containing a high proportion of carbon.") | Geography.kif 2022-2026 | |
| (externalImage Coal "http://upload.wikimedia.org/wikipedia/commons/7/72/ Coal_anthracite.jpg") | pictureList.kif 855-855 | |
| (roomTempState Coal Solid) | Mid-level-ontology.kif 31431-31431 | |
| (subclass Coal FossilFuel) | Geography.kif 2018-2018 | |
| (subclass Coal Mineral) | Geography.kif 2017-2017 | |
| (subclass Coal Rock) | Geography.kif 2019-2019 |
| appearance as argument number 2 |
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| (industryProductType CoalMining Coal) | Economy.kif 1716-1716 | |
| (names "coal" Coal) | Geography.kif 2020-2020 | |
| (subclass BrownCoal Coal) | Geography.kif 2003-2003 | |
| (termFormat ChineseLanguage Coal "煤") | domainEnglishFormat.kif 15324-15324 | |
| (termFormat ChineseTraditionalLanguage Coal "煤") | domainEnglishFormat.kif 15323-15323 | |
| (termFormat EnglishLanguage Coal "coal") | domainEnglishFormat.kif 15322-15322 |
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