A person may fire_back with gas.Logical formLearned from41 sentences. Levels can be constituted-of-or-filled-with (greenhouse gas emissions).Logical formLearned from41 sentences. A dispute can be over (gas fields).Logical formLearned from41 sentences. (Gas emissions) may undergo a reduction.Logical formLearned from41 sentences. A (nerve gas attack) may kill some persons.Logical formLearned from41 sentences. A (gas transit system) may pertain-to a country.Logical formLearned from40 sentences. Gas may undergo a transportation.Logical formLearned from40 sentences. Clumps can be constituted-of-or-filled-with gas.Logical formLearned from40 sentences. Gas can be in a disk.Logical formLearned from40 sentences. Gas may undergo storage.Logical formLearned from40 sentences. Gas may undergo an expansion.Logical formLearned from40 sentences. A person may fan gas.Logical formLearned from40 sentences. A male may pass gas.Logical formLearned from40 sentences. A (gas station) can be closed.Logical formLearned from40 sentences. A woman may celebrate a birthday by helping a son.Logical formLearned from40 sentences.