Two analogies that relate objects to the associated rooms is given in the form "A : B. C : ?". "A : B" relates object A to room B. Your task is to replace the question mark (?) with the appropriate room for the given object C, following the "A : B" relation.
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Question: crib : bedroom. nightstand : ?

Answer: bedroom


Question: nightstand : bedroom. refrigerator : ?

Answer: kitchen


Question: dresser : bedroom. bookshelf : ?

Answer:
library