Accidents can be in (coal mines).Logical formLearned from25 sentences. (Coal reserve) can be global.Logical formLearned from25 sentences. Resources can be constituted-of-or-filled-with coal.Logical formLearned from25 sentences. A (coal power) can be dirty.Logical formLearned from25 sentences. Clean coal may undergo a development.Logical formLearned from25 sentences. A person may walk on coals.Logical formLearned from25 sentences. A coal can be red.Logical formLearned from25 sentences. Coal may be removed.Logical formLearned from25 sentences. A (coal mining town) may pertain-to a us-state.Logical formLearned from25 sentences. Producers can be constituted-of-or-filled-with coal.Logical formLearned from25 sentences. A (coal mine) can be brown.Logical formLearned from25 sentences. A country can be an exporter of coal.Logical formLearned from25 sentences. A (coal mine industry) may pertain-to a country.Logical formLearned from25 sentences. Emissions can be from (coal plants).Logical formLearned from25 sentences. (Coal mines) can be unlicensed.Logical formLearned from25 sentences.