Coal may be based.Logical formLearned from20 sentences. A coal can be plentiful.Logical formLearned from20 sentences. Mines can be constituted-of-or-filled-with coal.Logical formLearned from20 sentences. Some (coal plants) can be under construction.Logical formLearned from20 sentences. A (coal mine) can be in a us-state.Logical formLearned from20 sentences. A (coal mine) can be in a region.Logical formLearned from20 sentences. (Coal mining) may undergo a development.Logical formLearned from20 sentences. Supplies of coal may mean that something-is-the-case.Logical formLearned from20 sentences. A bit can be constituted-of-or-filled-with coal.Logical formLearned from20 sentences. A (coal plant) can be in a country.Logical formLearned from20 sentences. A new generation can be constituted-of-or-filled-with (coal power).Logical formLearned from20 sentences. Plants may burn coal.Logical formLearned from20 sentences. A heart may pertain-to a (coal country).Logical formLearned from20 sentences. Coal can be from a us-state.Logical formLearned from20 sentences. A bucket can be constituted-of-or-filled-with coal.Logical formLearned from20 sentences.