I would like to know more about the process of photosynthesis. Please provide a detailed explanation in at least 15 sentences, including a section on the importance of chlorophyll. Your answer must contain a title, wrapped in double angular brackets, such as <<Understanding Photosynthesis>>. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords *light energy*, *carbon dioxide*, *water*, *oxygen*, *glucose* in the response. At the end of your response, please explicitly add a postscript starting with P.S.
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