Coal can be for (energy production).Logical formLearned from11 sentences. A (methane explosion) can be at a (coal mine).Logical formLearned from11 sentences. (Coal plants) may pertain-to a us-state.Logical formLearned from11 sentences. A minister can be for coal.Logical formLearned from11 sentences. A male may keep a jar of (coal dust) on a desk.Logical formLearned from11 sentences. A (coal train) can be loaded.Logical formLearned from11 sentences. A jar can be constituted-of-or-filled-with (coal dust).Logical formLearned from11 sentences. (Coal mines) can be productive.Logical formLearned from11 sentences. A mine may supply coal.Logical formLearned from11 sentences. Problems can be in a (coal industry).Logical formLearned from11 sentences. (Coal mines) can be in a province.Logical formLearned from11 sentences. Workers can be at some (coal mines).Logical formLearned from11 sentences. (Coal miners) can be in a region.Logical formLearned from11 sentences. A military-commander can be a producer of a type of coal.Logical formLearned from11 sentences. A (coal producer) can be stand-alone.Logical formLearned from11 sentences.