(Greenhouse gas emissions) may pertain-to a US-city.Logical formLearned from17 sentences. A region can be rich in natural gas.Logical formLearned from17 sentences. Gas can be hot.Logical formLearned from17 sentences. Gas may emit x-rays.Logical formLearned from17 sentences. A country may have natural gas.Logical formLearned from17 sentences. A network can be constituted-of-or-filled-with (gas pipelines).Logical formLearned from17 sentences. Some (gas canisters) may be found.Logical formLearned from17 sentences. Gas may undergo a movement.Logical formLearned from17 sentences. A (gas bill) can be annual.Logical formLearned from17 sentences. Natural gas may slump.Logical formLearned from17 sentences. Gas may rotate.Logical formLearned from17 sentences. A supplier can be constituted-of-or-filled-with liquefied natural gas.Logical formLearned from17 sentences. An increase can be in a price of gas.Logical formLearned from17 sentences. Gas can be a hydrogen.Logical formLearned from17 sentences. A (greenhouse gas) can be responsible for global warming.Logical formLearned from17 sentences.