A coal may undergo a transportation.Logical formLearned from10 sentences. Coal may undergo an outcropping.Logical formLearned from10 sentences. A (coal export port) may pertain-to the world.Logical formLearned from10 sentences. Coal may undergo accumulations.Logical formLearned from10 sentences. A coal can be regular.Logical formLearned from10 sentences. Consumers can be constituted-of-or-filled-with coal.Logical formLearned from10 sentences. Coals can be warm.Logical formLearned from10 sentences. Land may be mined for coal.Logical formLearned from10 sentences. A us-state can be (coal producer).Logical formLearned from10 sentences. Coal may be mined in a us-state.Logical formLearned from10 sentences. A (coal mining) can be bituminous.Logical formLearned from10 sentences. Coal can be a coal.Logical formLearned from10 sentences. (Coal exports) can be to a country.Logical formLearned from10 sentences. A leader may pertain-to (coal miners).Logical formLearned from10 sentences. Some (coal miners) may die on a job.Logical formLearned from10 sentences.