Two analogies that relate actions to the tools used to perform the action is given in the form "A : B. C : ?". "A : B" relates action A to tool B. Your task is to replace the question mark (?) with the appropriate tool for the given action C, following the "A : B" relation.

[EX Q]: unlock : key. clamp : ?
[EX A]: clamp

[EX Q]: clamp : clamp. eat : ?
[EX A]: fork

[EX Q]: sweep : broom. dry : ?
[EX A]:
cloth