A (gas attack) can be lethal.Logical formLearned from26 sentences. (Gas disputes) can be between a country.Logical formLearned from26 sentences. A (gas crisis) may pertain-to a continent.Logical formLearned from26 sentences. A halt can be in (gas supplies).Logical formLearned from26 sentences. A debt can be for gas.Logical formLearned from26 sentences. (Market prices) can be for gas.Logical formLearned from26 sentences. A (gas explosion) can be accidental.Logical formLearned from26 sentences. A country may rely on gas.Logical formLearned from26 sentences. (Gas reserve) may undergo a development.Logical formLearned from26 sentences. A (gas explosion) can be at a mine.Logical formLearned from26 sentences. (Nerve gas sarins) can be deadly.Logical formLearned from26 sentences. A (gas attack) may pertain-to a weekday.Logical formLearned from26 sentences. A market can be for gas.Logical formLearned from26 sentences. A cylinder can be constituted-of-or-filled-with gas.Logical formLearned from25 sentences. Natural gas may be imported from a country.Logical formLearned from25 sentences.