I'll give you a question, please answer with step-by-step reasoning process. The tree had thousands of animals living in it, where was it located?\nOptions:\n- back yard\n- university\n- rainforest\n- backyard\n- sea

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At rainforest, thousands of animals are living. The tree had thousands of animals living in it, is located at rainforest.
The answer: rainforest.
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