Gas may spiral around a star.Logical formLearned from13 sentences. Death can be in a (gas chamber).Logical formLearned from13 sentences. Gas can be lead-free.Logical formLearned from13 sentences. A (poison gas attack) can be in a world-city.Logical formLearned from13 sentences. A (natural gas report) can be weekly.Logical formLearned from13 sentences. A (natural gas report) may pertain-to a country.Logical formLearned from13 sentences. A half-tank can be constituted-of-or-filled-with gas.Logical formLearned from13 sentences. Gas may contribute to global warming.Logical formLearned from13 sentences. Gas may undergo a loss.Logical formLearned from13 sentences. (Methane gas) may undergo a use.Logical formLearned from13 sentences. Gas can be in a cluster.Logical formLearned from13 sentences. (Greenhouse gas concentrations) may undergo a stabilisation.Logical formLearned from13 sentences. A foot can be on gas.Logical formLearned from13 sentences. Gas can be stellar.Logical formLearned from13 sentences. Competition can be from natural gas.Logical formLearned from13 sentences.