Context: On 16 March 2011, the freighter MS Oliva ran aground on Nightingale Island, spilling tons of heavy fuel oil into the ocean, leaving an oil slick threatening the island's population of rockhopper penguins. Nightingale Island has no fresh water, so the penguins were transported to Tristan da Cunha for cleaning.

Question: When did the freighter Nightingale run aground?
Answer: March 2011

Question: What was spilled when the freighter ran aground?
Answer: heavy fuel oil

Question: what animal was threatened with the fuel oil spill?
Answer: rockhopper penguins

Question: where were the penguins transported for cleaning?
Answer: Tristan da Cunha

Question: When did MS Oliva spill Tristan da Cunha into the ocean?
Answer: Unanswerable

Question: What was spilled into rockhopper penguins on March 16, 2011?
Answer: Unanswerable

Question: Who was responsible for spilling tons of rockhopper penguins in the ocean?
Answer: Unanswerable

Question: What was transported to NIghtingale Island for cleaning?
Answer: Unanswerable

Question: Where was the heavy fuel oil transported to for cleaning?
Answer: Unanswerable