A foot may pertain-to gas.Logical formLearned from13 sentences. (Gas centrifuges) may enrich uranium.Logical formLearned from13 sentences. A (gas canister) can be empty.Logical formLearned from13 sentences. Gas may undergo a resumption.Logical formLearned from13 sentences. A monopoly can be on (gas exports).Logical formLearned from13 sentences. Gas can be onshore.Logical formLearned from13 sentences. A (transit country) can be for part of (gas exports).Logical formLearned from12 sentences. Dozens may inhale gas.Logical formLearned from12 sentences. (Gas prices) can be between a world-city.Logical formLearned from12 sentences. (Squad officers) may discover (propane gas tanks).Logical formLearned from12 sentences. Soldiers may use gas.Logical formLearned from12 sentences. (Gas supplies) can be to an international-political-entity.Logical formLearned from12 sentences. A (greenhouse gas emission) can be global.Logical formLearned from12 sentences. A shortage can be constituted-of-or-filled-with (cooking gas).Logical formLearned from12 sentences. A build-up may pertain-to gas.Logical formLearned from12 sentences.