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.

Input: Consider Input: crib : nursery. sofa : ?

Output: parlor


Input: Consider Input: bookshelf : library. nightstand : ?

Output: bedroom


Input: Consider Input: microwave : kitchen. desk : ?


Output: office