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 consistency, answers should be in all lower cased letters.
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Question: Category: OH "BOY" 
Clue: Slang term for an American infantryman of WWI

Answer: doughboy


Question: Category: STARRY SONGS 
Clue: Perry Como advised "Catch a falling star & put it..." there

Answer: your pocket


Question: Category: FAMOUS PAIRS 
Clue: Chang & Eng, born in May 1811 & died in January 1874, were known as this pair

Answer:
siamese twins