Fuel may run_out.Logical formLearned from97 sentences. Fuel can be for vehicles.Logical formLearned from97 sentences. Fuel can be efficient.Logical formLearned from97 sentences. A (fuel demand) may pertain-to a country.Logical formLearned from97 sentences. An environment may be marked by (fuel prices).Logical formLearned from96 sentences. Fuel can be for (power plants).Logical formLearned from96 sentences. (Fuel shortages) can be chronic.Logical formLearned from96 sentences. A drawback can be in (fuel economy).Logical formLearned from95 sentences. Fuel may undergo a loss.Logical formLearned from95 sentences. A mixture can be constituted-of-or-filled-with fuel.Logical formLearned from94 sentences. An increase can be in (fuel efficiency).Logical formLearned from94 sentences. (Fuel costs) may pertain-to persons.Logical formLearned from94 sentences. Fuel can be for a reactor.Logical formLearned from93 sentences. (Fuel supplies) may pertain-to a country.Logical formLearned from93 sentences. Spent nuclear fuel may undergo storage.Logical formLearned from92 sentences.