A reduction can be in a (gas tax).Logical formLearned from23 sentences. Natural gas may be used in homes.Logical formLearned from23 sentences. A (gas tank) may pertain-to a truck.Logical formLearned from23 sentences. An increase can be in a price of natural gas.Logical formLearned from23 sentences. Gas can be monthly.Logical formLearned from23 sentences. (Gas turbines) can be heavy-duty.Logical formLearned from23 sentences. (Riot police) may lob gas.Logical formLearned from23 sentences. A (nerve gas attack) can be in a world-city.Logical formLearned from23 sentences. Some percent can be constituted-of-or-filled-with (natural gas production).Logical formLearned from23 sentences. Greek police may fire gas.Logical formLearned from23 sentences. A cut-off can be constituted-of-or-filled-with (gas supplies).Logical formLearned from23 sentences. An explosion can be on a (gas pipeline).Logical formLearned from23 sentences. (Gas deliveries) can be to a continent.Logical formLearned from23 sentences. A country may straddle (gas export routes) to clients.Logical formLearned from23 sentences. A (gas line) can be high-pressure.Logical formLearned from23 sentences.