A coal may be fired.Logical formLearned from21 sentences. An explosion can be at some (coal mine).Logical formLearned from21 sentences. An oversupply can be constituted-of-or-filled-with coal.Logical formLearned from21 sentences. (Coal mine accidents) may kill some persons.Logical formLearned from21 sentences. A (coal production) may pertain-to a country.Logical formLearned from21 sentences. A tax can be on coal.Logical formLearned from21 sentences. (Coal miner) may gain some percent to some rupiah.Logical formLearned from21 sentences. (Coal miner) may plunge some percent to some rupiah.Logical formLearned from21 sentences. Some lives may be lost in (coal mines).Logical formLearned from21 sentences. A (coal production capacity) can be annual.Logical formLearned from20 sentences. A (coal mine blast) can be deadly.Logical formLearned from20 sentences. A (coal mine) may pertain-to a person.Logical formLearned from20 sentences. Coal can be from mines.Logical formLearned from20 sentences. Coal may undergo a purchase.Logical formLearned from20 sentences. (Coal fields) can be bituminous.Logical formLearned from20 sentences.