Increases can be in (greenhouse gas concentrations).Logical formLearned from31 sentences. Persons may buy gas.Logical formLearned from31 sentences. A cutoff can be constituted-of-or-filled-with (gas supplies).Logical formLearned from31 sentences. A (gas grill) may pertain-to a person.Logical formLearned from31 sentences. An answer can be to (gas prices).Logical formLearned from31 sentences. A female may pass gas.Logical formLearned from31 sentences. Natural gas may burn.Logical formLearned from31 sentences. A (gas mask) may pertain-to a female.Logical formLearned from31 sentences. A stake can be in a (gas field).Logical formLearned from31 sentences. (Gas supplies) may pertain-to a continent.Logical formLearned from31 sentences. A case can be constituted-of-or-filled-with gas.Logical formLearned from31 sentences. Connection can be with a (nerve gas attack).Logical formLearned from31 sentences. Gas may pertain-to a world-city.Logical formLearned from31 sentences. Natural gas can be expensive.Logical formLearned from31 sentences. (Gas reserve) can be proved.Logical formLearned from31 sentences.