generate questions: At the east end of the Lady Chapel is a memorial chapel to the airmen of the RAF who were killed in the Second World War. It incorporates a memorial window to the Battle of Britain, which replaces an earlier Tudor stained glass window destroyed in the war.
Where is the memorial chapel of the airmen of the RAF? {sep_token} The memorial chapel of the airmen of the RAF has a window for what? {sep_token} The window for the Battle of Britain replaced what that was destroyed?