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.

[EX Q]: crib : bedroom. nightstand : ?
[EX A]: bedroom

[EX Q]: shelf : kitchen. shelf : ?
[EX A]: kitchen

[EX Q]: toolbox : garage. bookshelf : ?
[EX A]:
library