Return can be for oil.Logical formLearned from92 sentences. A head may pertain-to an (oil giant).Logical formLearned from92 sentences. (Oil reserve) may undergo a discovery.Logical formLearned from92 sentences. Prices can be constituted-of-or-filled-with crude oil.Logical formLearned from91 sentences. Volatility can be in (oil prices).Logical formLearned from91 sentences. (Oil prices) may undergo a fall.Logical formLearned from91 sentences. A (market price) can be for oil.Logical formLearned from91 sentences. Representative can be in (oil painting field).Logical formLearned from91 sentences. Some (vegetable oil) can be for frying.Logical formLearned from91 sentences. Persons may pack (oil painting) with bar.Logical formLearned from91 sentences. Inventories can be constituted-of-or-filled-with oil.Logical formLearned from91 sentences. A country may import some percent of oil.Logical formLearned from91 sentences. (Oil prices) may remain at levels.Logical formLearned from91 sentences. An (oil spill) can be catastrophic.Logical formLearned from91 sentences. A forecast can be for (oil demand growth).Logical formLearned from91 sentences.