Use reasoning to lead to the answer of the following question:
Where would you get a dog if you do not have one?\nOptions:\n- pet store\n- outside\n- neighbor's house\n- park\n- rug
 Reasoning process:
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Pet store is a retail business which sells different kinds of animals, variety of animal supplies and pet accessories to the public. We would get a dog at a pet store, if we do not have one. Therefore, the final answer is pet store.
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