A fall can be in a price of oil.Logical formLearned from94 sentences. Declines can be in (oil prices).Logical formLearned from94 sentences. Control can be over oil.Logical formLearned from94 sentences. A country can be an exporter of oil.Logical formLearned from94 sentences. Oil may undergo concentration.Logical formLearned from94 sentences. Oil may undergo a search.Logical formLearned from94 sentences. A country may use oil.Logical formLearned from94 sentences. A country may sit on (oil reserve).Logical formLearned from94 sentences. Oil can be on canvas.Logical formLearned from94 sentences. Oil may spill.Logical formLearned from94 sentences. (Oil painting) can be on canvas.Logical formLearned from93 sentences. Plumes can be constituted-of-or-filled-with oil.Logical formLearned from93 sentences. Investment can be in an (oil sector).Logical formLearned from93 sentences. Oil may play a role.Logical formLearned from93 sentences. (Oil prices) may peak.Logical formLearned from93 sentences.