Hundreds can be constituted-of-or-filled-with coal.Logical formLearned from54 sentences. A (coal mine) can be in a country.Logical formLearned from53 sentences. A (gas blast) can be at a (coal mine).Logical formLearned from53 sentences. A male may work as a (coal miner).Logical formLearned from51 sentences. A market can be for coal.Logical formLearned from51 sentences. A (coal output) can be annual.Logical formLearned from51 sentences. Coals can be hot.Logical formLearned from51 sentences. A fire can be in a (coal mine).Logical formLearned from51 sentences. A person may dump coals.Logical formLearned from50 sentences. A quality may pertain-to a coal.Logical formLearned from50 sentences. Prices can be constituted-of-or-filled-with coal.Logical formLearned from50 sentences. (Coal technologies) can be advanced.Logical formLearned from49 sentences. A female may carry of coal.Logical formLearned from49 sentences. Coal can be clean.Logical formLearned from49 sentences. Coal can be for electricity.Logical formLearned from49 sentences.