(Coal mines) may undergo a development.Logical formLearned from26 sentences. Some percent can be constituted-of-or-filled-with mines.Logical formLearned from26 sentences. (Underground mines) can be abandoned.Logical formLearned from26 sentences. A mine can be licensed.Logical formLearned from26 sentences. Measures can be in mines.Logical formLearned from26 sentences. A canary can be in a (coal mine).Logical formLearned from26 sentences. (Land mines) can be remote-controlled.Logical formLearned from26 sentences. A (strip mine) can be reclaimed.Logical formLearned from26 sentences. (Coal mine explosion) can be in a country.Logical formLearned from26 sentences. Workers may pertain-to a mine.Logical formLearned from26 sentences. (Safety standards) can be at mines.Logical formLearned from26 sentences. Soldiers may lay mines.Logical formLearned from26 sentences. A flood can be at a mine.Logical formLearned from26 sentences. A (gas explosion) can be at a mine.Logical formLearned from26 sentences. An abandoned mine can be adjacent.Logical formLearned from26 sentences.