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.

toolbox : shed. bookshelf : ?
library

recliner : den. desk : ?
office

refrigerator : kitchen. bookshelf : ?

library