(Coal reserve) may pertain-to a country.Logical formLearned from168 sentences. (Coal miners) may pertain-to a us-state.Logical formLearned from165 sentences. Reliance can be on coal.Logical formLearned from165 sentences. Lumps can be constituted-of-or-filled-with coal.Logical formLearned from165 sentences. A coal may pertain-to persons.Logical formLearned from164 sentences. A (coal producer) may pertain-to the world.Logical formLearned from162 sentences. A piece can be constituted-of-or-filled-with coal.Logical formLearned from155 sentences. A (coal production) may pertain-to a country.Logical formLearned from153 sentences. Coal may undergo consumption.Logical formLearned from153 sentences. Thousands can be constituted-of-or-filled-with (coal miners).Logical formLearned from145 sentences. Some miners may be trapped in a (coal mine).Logical formLearned from143 sentences. A dependence can be on coal.Logical formLearned from142 sentences. Coal may be burnt.Logical formLearned from141 sentences. Coals can be fresh.Logical formLearned from136 sentences. Coal may undergo a transportation.Logical formLearned from133 sentences.