Your answer must contain a title, wrapped in double angular brackets, such as <<poem of joy>>. Your response should contain at least 5 sentences. In your response, the word "nature" should appear at least 3 times. At the end of your response, please explicitly add a postscript starting with P.S. Do not include keywords [forbidden_words] in the response. [forbidden_words] are "man", "woman", "child".

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