| No TPTP formula. May not be expressible in strict first order. | Languages.kif 6246-6246 | 子類 chukotko kamchatkan 語言 and 口語人類語言 |
| No TPTP formula. May not be expressible in strict first order. | Languages.kif 6253-6253 | 子類 北部chukotko kamchatkan 語 and chukotko kamchatkan 語言 |
| No TPTP formula. May not be expressible in strict first order. | Languages.kif 6329-6329 | 子類 南部chukotko kamchatkan 語 and chukotko kamchatkan 語言 |
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