Gas may disperse.Logical formLearned from19 sentences. A (colliery gas blast) may pertain-to a country.Logical formLearned from19 sentences. Disruptions can be in (gas supplies).Logical formLearned from19 sentences. Some (gas attack) can be on a subway.Logical formLearned from19 sentences. Gas can be argentine.Logical formLearned from19 sentences. Limits can be on (greenhouse gas emissions).Logical formLearned from19 sentences. Gas may be reached.Logical formLearned from19 sentences. Gas can be high-speed.Logical formLearned from19 sentences. Prices can be for natural gas.Logical formLearned from19 sentences. Gas may be injected.Logical formLearned from19 sentences. Levels may pertain-to a (greenhouse gas).Logical formLearned from19 sentences. A price can be for (gas supplies).Logical formLearned from19 sentences. (Gas shipments) can be to a country.Logical formLearned from19 sentences. Gas may be formed.Logical formLearned from19 sentences. Gas may undergo a motion.Logical formLearned from19 sentences.