A (coal mine safety adviser) can be to a chinese government.Logical formLearned from27 sentences. Coal can be plentiful.Logical formLearned from27 sentences. An affiliate can be constituted-of-or-filled-with coal.Logical formLearned from27 sentences. A layer can be constituted-of-or-filled-with coal.Logical formLearned from27 sentences. A (coal industry) can be in a country.Logical formLearned from27 sentences. A (coal industry) may pertain-to persons.Logical formLearned from27 sentences. A (coal mine safety bureau) can be provincial.Logical formLearned from27 sentences. Some (coal mines) can be in a country.Logical formLearned from27 sentences. A fire can be at a (coal mine).Logical formLearned from27 sentences. A (coal company) may pertain-to a US-city.Logical formLearned from26 sentences. A (coal mine) may undergo a development.Logical formLearned from26 sentences. Exposure can be to (coal dust).Logical formLearned from26 sentences. Blocks can be constituted-of-or-filled-with coal.Logical formLearned from26 sentences. (Coal plants) may pertain-to a country.Logical formLearned from26 sentences. (Coal mining) may undergo an expansion.Logical formLearned from26 sentences.