A blast can be in a mine.Logical formLearned from24 sentences. A mine may undergo a search.Logical formLearned from24 sentences. Mines may be buried.Logical formLearned from24 sentences. (Coal mines) can be in an area.Logical formLearned from24 sentences. A (gas explosion) may rip through a mine.Logical formLearned from24 sentences. A mine can be (coal mine).Logical formLearned from24 sentences. A total of some men may work at a mine.Logical formLearned from24 sentences. Mines may be cleared.Logical formLearned from24 sentences. Mines may be used.Logical formLearned from24 sentences. A car may run over a mine.Logical formLearned from23 sentences. (Coal mine accidents) can be in a country.Logical formLearned from23 sentences. A (coal mine) may pertain-to a company.Logical formLearned from23 sentences. A total can be constituted-of-or-filled-with some (coal mines).Logical formLearned from23 sentences. A list can be constituted-of-or-filled-with mines.Logical formLearned from23 sentences. Mines may undergo explosions.Logical formLearned from23 sentences.