Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

In 1951, which European country saw the abdication of King Leopold lll in favour of his son Baudouin?
baudouin of belgium

Which popular animated characters, first seen in 1996 include many different characters including ones called Ash Ketchum, Tracy Sketchit and Gar Oak?
tracy

Which English composer wrote the music 'Crown Imperial' for the coronation of George VI?

crown imperial