I'll give you a question, please answer with step-by-step reasoning process. What can you stick a key in?\nOptions:\n- pocket\n- bus depot\n- front door\n- purse\n- roof

User
Front door is the main entrance to a house. Stick a key in means to push a sharp or pointed part of key into or through a keyhole. You can stick a key in front door.
The answer: front door.
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