We need to output article content only. Should start with first chapter markdown title ##. Also need to insert 3-4 image generation placeholders with comments: each placeholder starts with . Use English prompt per guidelines. The placeholders must have exact HTML comment.nnWe need to insert first image after first or second paragraph. Here, start article, first chapter title. Then first paragraph, then second paragraph. After second paragraph, insert first image placeholder (image for data/analysis?). We choose context: maybe “流程/步骤” or “数据/分析”. We’ll analyze each paragraph to decide.nnAlso insert second image placeholder in middle of article, and third before the ending. Need 3-4; requirement 3-4; we can do 3. Ensure we don’t put inside lists. The article will include maybe 5 sections? Strategies like

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