Coal can be for power.Logical formLearned from17 sentences. An increase can be in (coal production).Logical formLearned from17 sentences. A (coal production) can be hard.Logical formLearned from17 sentences. A (coal mine gas explosion) can be in a province.Logical formLearned from17 sentences. A train may carry coal.Logical formLearned from17 sentences. A (coal mine blast) may undergo a (death toll).Logical formLearned from16 sentences. (Coal mines) may undergo a closing.Logical formLearned from16 sentences. A (coal shaft) can be flooded.Logical formLearned from16 sentences. A (coal export) may pertain-to a country.Logical formLearned from16 sentences. Coal may account for some percent of an (energy consumption).Logical formLearned from16 sentences. (Coal mines) may pertain-to an area.Logical formLearned from16 sentences. A pit can be constituted-of-or-filled-with coals.Logical formLearned from16 sentences. An area can be rich in coal.Logical formLearned from16 sentences. A majority may pertain-to a coal.Logical formLearned from16 sentences. An industry can be (coal mining).Logical formLearned from16 sentences.