Context: On 15 September 1940, known as the Battle of Britain Day, an RAF pilot, Ray Holmes of No. 504 Squadron RAF rammed a German bomber he believed was going to bomb the Palace. Holmes had run out of ammunition and made the quick decision to ram it. Holmes bailed out. Both aircraft crashed. In fact the Dornier Do 17 bomber was empty. It had already been damaged, two of its crew had been killed and the remainder bailed out. Its pilot, Feldwebel Robert Zehbe, landed, only to die later of wounds suffered during the attack. During the Dornier's descent, it somehow unloaded its bombs, one of which hit the Palace. It then crashed into the forecourt of London Victoria station. The bomber's engine was later exhibited at the Imperial War Museum in London. The British pilot became a King's Messenger after the war, and died at the age of 90 in 2005.

Question: What is the date of the Battle of Britain Day?
Answer: 15 September 1940

Question: What did Ray Holmes think the German pilot was going to bomb?
Answer: the Palace

Question: What type of airplane was the German craft Holmes rammed into?
Answer: Dornier Do 17 bomber

Question: After the war what did Holmes become?
Answer: King's Messenger

Question: What year did Ray Holmes die?
Answer: 2005

Question: What is September 15, 1940 known as?
Answer: the Battle of Britain Day

Question: What did Ray Holmes believe the German pilot was targeting?
Answer: the Palace

Question: What did Holmes do to stop the German Plane?
Answer: ram it

Question: What type of aircraft was the German Plane?
Answer: Dornier Do 17 bomber

Question: When did Holmes die?
Answer: 2005

Question: What is the date of the celebration of Britain Day?
Answer: Unanswerable

Question: What did Ray Holmes think the German pilot was going to restore?
Answer: Unanswerable

Question: What type of airplane was the German craft Holmes avoiding?
Answer: Unanswerable

Question: What did Holmes become during the war?
Answer: Unanswerable

Question: What year did Ray Holmes give birth?
Answer: Unanswerable