A monopoly can be on (home deliveries) of natural gas.Logical formLearned from15 sentences. (Home deliveries) can be constituted-of-or-filled-with natural gas.Logical formLearned from15 sentences. A (gas cloud) may collapse.Logical formLearned from15 sentences. A (gas export facility) can be in a country.Logical formLearned from15 sentences. Gas may undergo an insertion.Logical formLearned from15 sentences. (Nerve gas) may undergo a manufacture.Logical formLearned from15 sentences. One-third may pertain-to gas.Logical formLearned from15 sentences. (Gas reserve) may undergo a development.Logical formLearned from15 sentences. (Greenhouse gas emissions) can be from fossil fuels.Logical formLearned from15 sentences. A person can be low on gas.Logical formLearned from15 sentences. Persons may step on gas.Logical formLearned from15 sentences. Domestic demand can be for natural gas.Logical formLearned from15 sentences. (Gas sales) can be to a country.Logical formLearned from15 sentences. Gas can be treated.Logical formLearned from15 sentences. Gas can be interstellar.Logical formLearned from15 sentences.