A visit can be to a mine.Logical formLearned from32 sentences. A series can be constituted-of-or-filled-with mines.Logical formLearned from32 sentences. A humidity may pertain-to a mine.Logical formLearned from32 sentences. (Safety violations) can be at a mine.Logical formLearned from32 sentences. A (gas explosion) can be in a mine.Logical formLearned from32 sentences. A co-owner may pertain-to a mine.Logical formLearned from32 sentences. A (coal mine) may be flooded.Logical formLearned from32 sentences. An explosion may rip through a mine.Logical formLearned from32 sentences. Mines may undergo a nationalization.Logical formLearned from32 sentences. Mines can be inefficient.Logical formLearned from32 sentences. Mines may be removed.Logical formLearned from32 sentences. Some (coal mine accidents) can be in a country.Logical formLearned from32 sentences. A male may step on a mine.Logical formLearned from32 sentences. A mine may have a form of a blotch.Logical formLearned from31 sentences. Some mines may close.Logical formLearned from31 sentences.