(Oil prices) can be volatile.Logical formLearned from419 sentences. Taxes can be on (oil companies).Logical formLearned from417 sentences. Some tonnes can be constituted-of-or-filled-with (fuel oil).Logical formLearned from414 sentences. (Oil exports) may pertain-to a country.Logical formLearned from411 sentences. A country may have (oil reserve).Logical formLearned from410 sentences. (Oil paintings) may pertain-to a male.Logical formLearned from408 sentences. Oil can be expensive.Logical formLearned from406 sentences. Oil can be from a country.Logical formLearned from405 sentences. Attacks can be on (oil facilities).Logical formLearned from404 sentences. (Heating oil) can be for delivery.Logical formLearned from403 sentences. Exports can be constituted-of-or-filled-with oil.Logical formLearned from401 sentences. A crude oil can be imported.Logical formLearned from400 sentences. Oil can be undiscovered.Logical formLearned from395 sentences. A jump can be in (oil prices).Logical formLearned from394 sentences. (Oil production) can be in a country.Logical formLearned from390 sentences.