TASK DEFINITION: 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.
PROBLEM: mop : mop. dry : ?

SOLUTION: cloth

PROBLEM: cut : sword. spread : ?

SOLUTION: knife

PROBLEM: cut : glass. wash : ?

SOLUTION:
soap