(Gas prices) may remain high.Logical formLearned from61 sentences. (Greenhouse gas emitters) may pertain-to the world.Logical formLearned from61 sentences. (Gas chambers) may undergo ruins.Logical formLearned from61 sentences. (Greenhouse gas concentrations) can be in the atmosphere.Logical formLearned from61 sentences. Natural gas can be from a country.Logical formLearned from61 sentences. Problems can be with (gas pedals).Logical formLearned from61 sentences. Gas can be ionised.Logical formLearned from60 sentences. An increase can be in (greenhouse gas emissions).Logical formLearned from60 sentences. A natural gas can be raw.Logical formLearned from60 sentences. Gas can be wasted.Logical formLearned from60 sentences. A (gas cap) may pertain-to a person.Logical formLearned from60 sentences. A (gas card) may pertain-to a person.Logical formLearned from60 sentences. Persons may go to a (gas station).Logical formLearned from60 sentences. A person may have gas.Logical formLearned from60 sentences. A person may enjoy (gas mileage).Logical formLearned from60 sentences.