A mine may cease operations.Logical formLearned from19 sentences. A mine may have a form of a blotch-mine.Logical formLearned from19 sentences. Larvaes may leave a mine.Logical formLearned from19 sentences. Mines may be exhausted.Logical formLearned from19 sentences. A (cast coal mine) can be open.Logical formLearned from19 sentences. A version may pertain-to a mine.Logical formLearned from19 sentences. (Coal mines) may be closed.Logical formLearned from19 sentences. A center may pertain-to a mine.Logical formLearned from19 sentences. Mines may be established.Logical formLearned from19 sentences. An area can be around a mine.Logical formLearned from19 sentences. Some pieces can be in mines.Logical formLearned from19 sentences. A mine can be affected.Logical formLearned from19 sentences. Miners can be at a mine.Logical formLearned from19 sentences. Modification can be for a mine.Logical formLearned from19 sentences. A mine may produce an average of some tons of coal.Logical formLearned from19 sentences.