Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Who is the only British Prime Minister to serve under 3 monarchs?

Answer: prime minister of the united kingdom


Question: On which holiday island are the peaks of 'Ruivo' and 'Arieiro', and the airport of 'Santa Cruz'?

Answer: pico do arieiro


Question: The voice of Bugs Bunny, Daffy Duck, Porky Pig, Sylvester the Cat, Tweety Bird, Foghorn Leghorn, Yosemite Sam, Wile E. Coyote, Woody Woodpecker, Barney Rubble, Mr. Spacely, Speed Buggy, Captain Caveman, Heathcliff, Speedy Gonzales, Elmer Fudd and hundreds of others, which American voice actor was born on May 30, 1908?

Answer:
tweety