A veil can be constituted-of-or-filled-with gas.Logical formLearned from17 sentences. (Gas needs) may pertain-to an international-political-entity.Logical formLearned from17 sentences. A (gas tax) can be increased.Logical formLearned from17 sentences. A (gas content) can be high.Logical formLearned from17 sentences. Gas may undergo a migration.Logical formLearned from17 sentences. Gas can be effective.Logical formLearned from17 sentences. Atoms may pertain-to gas.Logical formLearned from17 sentences. (Gas fields) can be discovered.Logical formLearned from17 sentences. (Gas stations) may remain closed.Logical formLearned from17 sentences. A (gas field) can be developed.Logical formLearned from17 sentences. A (natural gas giant) can be state-controlled.Logical formLearned from17 sentences. A (methane gas explosion) can be at a (coal mine).Logical formLearned from17 sentences. Gas may pertain-to a region.Logical formLearned from17 sentences. Price can be for gas.Logical formLearned from17 sentences. Gas may be sold under contracts.Logical formLearned from17 sentences.