A coal may pertain-to a us-state.Logical formLearned from288 sentences. Some tonnes can be constituted-of-or-filled-with coal.Logical formLearned from286 sentences. A (coal mine) may pertain-to a us-state.Logical formLearned from285 sentences. A (coal producer) may pertain-to a country.Logical formLearned from272 sentences. A coal can be imported.Logical formLearned from265 sentences. A (gas explosion) can be in a (coal mine).Logical formLearned from250 sentences. Coal may undergo a mining.Logical formLearned from244 sentences. Deposits can be constituted-of-or-filled-with coal.Logical formLearned from241 sentences. Coal may undergo an extraction.Logical formLearned from236 sentences. A (gas explosion) can be at a (coal mine).Logical formLearned from236 sentences. A coal can be enough.Logical formLearned from235 sentences. An explosion can be at a (coal mine).Logical formLearned from228 sentences. An explosion can be in a (coal mine).Logical formLearned from226 sentences. (Coal plants) may undergo construction.Logical formLearned from223 sentences. A coal can be dirty.Logical formLearned from218 sentences.