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.

Example Input: stove : kitchen. counter : ?
Example Output: kitchen

Example Input: crib : nursery. nightstand : ?
Example Output: bedroom

Example Input: sink : kitchen. bookshelf : ?
Example Output:
library

