A volume may pertain-to (gas exports).Logical formLearned from10 sentences. The police may throw gas.Logical formLearned from10 sentences. A mixture can be constituted-of-or-filled-with natural gas.Logical formLearned from10 sentences. Troops may use (nerve gas).Logical formLearned from10 sentences. Some (gas production areas) may take shape.Logical formLearned from10 sentences. A (nerve gas) can be potent.Logical formLearned from10 sentences. A (gas output) can be daily.Logical formLearned from10 sentences. (Gas reserve) may undergo an expansion.Logical formLearned from10 sentences. (Utility employees) may work on gas.Logical formLearned from10 sentences. Some ms can be constituted-of-or-filled-with gas.Logical formLearned from10 sentences. A (gas reservoir) can be in the world.Logical formLearned from10 sentences. Gas can be solid.Logical formLearned from10 sentences. A (gas sarin) can be lethal.Logical formLearned from10 sentences. Gas can be overseas.Logical formLearned from10 sentences. Access can be to a natural gas.Logical formLearned from10 sentences.