A mine may cause pollution.Logical formLearned from17 sentences. A mine can be within levels.Logical formLearned from17 sentences. Production can be at a (gold mine).Logical formLearned from17 sentences. A (coal mine gas explosion) can be in a province.Logical formLearned from17 sentences. Persons may sit on a (gold mine).Logical formLearned from17 sentences. Some miners may die in a mine.Logical formLearned from17 sentences. A mine may be planted by rebels.Logical formLearned from17 sentences. (Land mines) can be laid.Logical formLearned from17 sentences. A (coal mine blast) may undergo a (death toll).Logical formLearned from16 sentences. A fire can be in a mine.Logical formLearned from16 sentences. Mines may undergo an expansion.Logical formLearned from16 sentences. Mines may pertain-to a river.Logical formLearned from16 sentences. (Coal mines) may undergo a closing.Logical formLearned from16 sentences. A mine can be laid.Logical formLearned from16 sentences. A (land mine explosion) can be in a country.Logical formLearned from16 sentences.