A hike can be in (fuel prices).Logical formLearned from495 sentences. Fossil fuels may undergo a combustion.Logical formLearned from488 sentences. A fuel can be atomic.Logical formLearned from469 sentences. A fuel may pertain-to persons.Logical formLearned from464 sentences. Demand can be for fuel.Logical formLearned from440 sentences. Fossil fuels may undergo consumption.Logical formLearned from431 sentences. A fuel can be used.Logical formLearned from421 sentences. Some tonnes can be constituted-of-or-filled-with (fuel oil).Logical formLearned from414 sentences. An alternative can be to fossil fuels.Logical formLearned from411 sentences. A (fuel economy) can be improved.Logical formLearned from394 sentences. A fuel can be fresh.Logical formLearned from382 sentences. A fuel can be high.Logical formLearned from380 sentences. Dependence can be on fossil fuels.Logical formLearned from377 sentences. A fuel can be imported.Logical formLearned from373 sentences. A fuel may pertain-to a male.Logical formLearned from370 sentences.