| Coal(coal)
| | anthracite, anthracite_coal, bituminous_coal, coal, hard_coal, sea_coal, soft_coal, steam_coal |
| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Geography.kif 2022-2026 | |
| No TPTP formula. May not be expressible in strict first order. | pictureList.kif 855-855 | |
| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 31399-31399 | roomTempState coal and solid |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 2018-2018 | Coal is a subclass of fossil fuel |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 2017-2017 | Coal is a subclass of mineral |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 2019-2019 | Coal is a subclass of rock |
| appearance as argument number 2 |
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| No TPTP formula. May not be expressible in strict first order. | Economy.kif 1716-1716 | Coal is an industry product type of coal mining |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 2020-2020 | Coal has name "coal" |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 2003-2003 | Brown coal is a subclass of coal |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 15324-15324 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 15323-15323 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 15322-15322 |
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