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: sink : bathroom. table : ?

Output: kitchen


Input: Consider Input: sink : kitchen. shelf : ?

Output: kitchen


Input: Consider Input: desk : office. nightstand : ?


Output: bedroom