You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Q: Category: DOUBLE TALK 
Clue: In the 1920s Donald Duncan introduced this child's toy to America & it's had its ups & downs ever since

A: yo-yo
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Q: Category: THE FILM VAULT 
Clue: Sidney Poitier starred in the 1961 film version of this Lorraine Hansberry drama about a black Chicago family

A: a raisin in the sun
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Q: Category: EVERYTHING! 
Clue: A complete dictionary, or the River Kwai after the explosion

A:
unabridged
****