Coal can be (energy resource).Logical formLearned from15 sentences. Coal can be for a fire.Logical formLearned from15 sentences. Areas can be constituted-of-or-filled-with coal.Logical formLearned from15 sentences. A weight may pertain-to a coal.Logical formLearned from15 sentences. A (coal combustion) can be pulverized.Logical formLearned from15 sentences. A (coal mining) can be large-scale.Logical formLearned from15 sentences. A coal may be consumed.Logical formLearned from15 sentences. A coal can be soft.Logical formLearned from15 sentences. A (coal mine) can be in the world.Logical formLearned from15 sentences. (Coal resources) may undergo a use.Logical formLearned from15 sentences. A blast may be caused by (coal gas ignitings).Logical formLearned from15 sentences. A (coal mine) may pertain-to a family.Logical formLearned from15 sentences. Conditions can be in (coal mines).Logical formLearned from15 sentences. A country can be hungry for coal.Logical formLearned from15 sentences. A (coal mine) may be shuted.Logical formLearned from15 sentences.