A coal can be underground.Logical formLearned from83 sentences. Chunks can be constituted-of-or-filled-with coal.Logical formLearned from83 sentences. A mound can be constituted-of-or-filled-with coals.Logical formLearned from83 sentences. (Coal mining) can be in a country.Logical formLearned from81 sentences. (Coal producers) may pertain-to a country.Logical formLearned from81 sentences. A coal can be loose.Logical formLearned from79 sentences. A percent may pertain-to a coal.Logical formLearned from78 sentences. A (coal mine accident) may pertain-to a country.Logical formLearned from77 sentences. Shortages can be constituted-of-or-filled-with coal.Logical formLearned from77 sentences. Coal may undergo an abundance.Logical formLearned from77 sentences. (Coal reserve) can be proven.Logical formLearned from77 sentences. A son may pertain-to a (coal miner).Logical formLearned from77 sentences. Coal may undergo a development.Logical formLearned from77 sentences. An alternative can be to coal.Logical formLearned from76 sentences. A (coal miner) can be retired.Logical formLearned from76 sentences.