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.

[Q]: dry : blowdryer. dig : ?
[A]: shovel


[Q]: cook : stove. type : ?
[A]: keyboard


[Q]: wash : rag. unlock : ?
[A]:
key