<prompt> Ramba uchiverenga ndima iyi - Kudeuka uku ndiko kudonha kukuru kwepeturu kwechitatu muUnited States, kuchipfuurwa bedzi neDeepwater Horizon neExxon Valdez  <response>: kudonha kwemafuta. Yakaguma nokuwedzerwa kweDhipatimendi reMukati meBuffer Zone muChannel uye yakabatsira pakuumbwa kweEnvironmental Protection Agency. 