Police may fight with gas.Logical formLearned from30 sentences. Natural gas may fall some percent.Logical formLearned from30 sentences. A country can be (gas supplier).Logical formLearned from30 sentences. A (gas station) can be deserted.Logical formLearned from30 sentences. Gas can be surplus.Logical formLearned from30 sentences. A market can be for natural gas.Logical formLearned from30 sentences. A tankful can be constituted-of-or-filled-with gas.Logical formLearned from30 sentences. A (hydrogen gas) can be compressed.Logical formLearned from30 sentences. (Flue gas emission control waste) may be generated from a combustion of coal.Logical formLearned from30 sentences. A column can be constituted-of-or-filled-with gas.Logical formLearned from30 sentences. (Greenhouse gas emissions) may cause global warming.Logical formLearned from30 sentences. Natural gas may lose some cents.Logical formLearned from30 sentences. A country may supply a quarter of gas.Logical formLearned from30 sentences. (Gas prices) may have an effect.Logical formLearned from30 sentences. (Greenhouse gas emissions) may undergo a mitigation.Logical formLearned from30 sentences.