Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
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Question: What you talkin' about Willis was a catchphrase for the late Gary Coleman in which TV series?

Answer: diff'rent strokes


Question: Although approaching his 30th birthday, in which 1953 film did Marlon Brando play the part of the teenage leader of a motorcycle gang?

Answer: the wild one


Question: Abraham Maslow's 'Hierarchy of Needs' theory explains?

Answer:
motivation