I'll give you a question, please answer with step-by-step reasoning process. The human wanted to give a bone as a reward, where did he put it?
Options:
- skeleton
- human body
- dog's mouth
- fresh fish
- barn

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Bones are chewy. Dogs like to chew bones. Rewards are given to dogs by humans. Dog's mouth can be used to chew bones.
The answer: dog's mouth.