We need to produce JSON with keys: summary, category, article_html. The article must meet rules. We need at least 1500 words. Each section paragraph 100-150 words. 5-7 main sections H2. Each section 2-3 p tags, each 100-150 words. So words per paragraph ~120 average. 2 paragraphs = 240 words per section. 5 sections = 1200 words. Need 1500 words, so maybe 6 sections with 2-3 paragraphs each. 6*240=1440, close. Add final FAQ section H3. Also maybe 7 sections. 7*240=1680 words. Good. We need H1 at start with primary keyword: "Best Books to Read on How to Start a Business Before Starting a Business". H2 for 5-7 main sections. H3 for subsections. Each section 2-3 p tags 100-150 words each. Use UL/OL lists 5-10 items. Use STRONG for key terms. Also include specific book recommendations, authors, key takeaways. At end, include 3-5 FAQ questions as H3. We must output JSON with the HTML string. Need to ensure HTML is valid. Word count: must be at least 1500 words. Let's craft 6 sections. Each section 2 paragraphs 120 words each ~240 words. 6*240=1440. Add FAQs maybe 200 words. Total 1640. Good. We need to include strong tags for key terms. Let's create sections: 1. Understanding Your Why and Vision 2. Market Research and Validation 3. Business Model and Planning 4. Financial Foundations and Funding 5. Building Your Brand and Online Presence 6. Legal, Operational, and Growth Strategies Plus FAQ. Within each section, 2 paragraphs 100-150 words. Also include lists. Let's craft. We need to include specific book recommendations. Provide key takeaways. We must not exceed too many paragraphs per section; 2 paragraphs per section. And each paragraph 100-150 words. We'll aim 120 words. Let's craft each paragraph. We also need H3 subsections maybe for each book? But rule says H3 for subsections. We can use H3 for each book within section. But we might want to list multiple books under each H2 using H3 for each book. That will create many H3 tags. That's fine. But we need 2-3 paragraphs per section. Additional H3 tags inside section are fine. We'll keep paragraphs separate. Let's write: H1: Best Books to Read on How to Start a Business Before Starting a Business H2: 1. Understanding Your Why and Vision Paragraph 1: about books like "Start With Why" by Simon Sinek, "The Lean Startup" by Eric Ries, "The Art of Possibility" etc. Provide key takeaways. Paragraph 2: Additional insights, list of 5 books, etc. H3 tags maybe for each book. But we need paragraphs 2-3 per section. We can still have H3 tags after paragraphs. The rule says H3 for subsections. Subsections likely will be book titles. So we can add H3 for each book. Within H3 maybe small paragraph or bullet list of takeaways. This might produce many paragraphs but still within 2-3 per main section? The rule says p tags: 2-3 per section. So we cannot have more paragraphs. If we add H3 tags with content inside, we might need to use p tags inside H3? But we can keep just H3 tags as headings, and no paragraph inside them. But then we lose content. We can incorporate bullet lists inside or short paragraphs. But the rule may be interpreted strictly: each section must have 2-3 p tags. So we need to ensure only 2-3 p tags per section. We can still add H3 headings but no p tags inside them? We could have H3 headings followed by UL lists, which are not p tags. That's okay. But we still might lose content. But we can embed short paragraphs inside UL items? They would be inside p tags as part of list item. But each li can contain p tags. That could increase paragraph count. To keep simple, we can create H3 headings with no paragraph, just list items maybe. But we need content. We can have each H3 heading followed by a paragraph summarizing that book. That would add more p tags. So we need to be careful. Alternative: Keep only 2-3 paragraphs per section, and include book recommendations in those paragraphs. Use lists inside paragraphs. That satisfies rule. We don't need H3 for each book. We can use H3 for subsections like "Key Takeaways" within a section. But then we need paragraphs inside that. Eh. Simpler: Use H2 for each section. Inside each section, use 2 paragraphs. Then add a UL list of 5-10 items (book titles). Then add an H3 "Key Takeaways" with maybe 3-4 p tags? That would exceed paragraph count. But we could put key takeaways inside the list items. Or we can embed key takeaways inside the paragraphs. Better: Each section: 2 paragraphs. Then UL list of books with short description, maybe each li contains a book title, author, and takeaway. That will not create new paragraphs. So we stay within 2-3 p tags. Also we need FAQs at end as H3. That is fine. So final structure: H1 H2 Section 1 p1 p2 ul list of books H2 Section 2 p1 p2 ul ... At end H3 FAQ 1, H3 FAQ 2, etc. Each FAQ as H3 heading with paragraph answer. We need 3-5 FAQ questions as H3. So 4 FAQs. Now ensure each paragraph 100-150 words. We'll craft 120 words each. Let's produce. We also need to include specific book recommendations, authors, key takeaways. We need to ensure total word count 1500+. We'll have 6 sections with 2 paragraphs each (120 words each) = 1440 words. Add 4 FAQs maybe 120 words each = 480 words. Total 1920 words. That's fine. But we must ensure paragraphs length 100-150 words. Let's craft 120 words each. We must also ensure UL lists inside each section maybe 5-6 items. Let's craft text. We'll write each paragraph in English, about 120 words. Count approximate words manually. Let's draft Section 1: Paragraph 1 (~120 words): "Before you write a single business plan, grounding yourself in the core purpose of the venture is essential. Simon Sinek’s *Start With Why* invites entrepreneurs to discover the underlying motivation that drives their ideas. By articulating a compelling ‘why’, founders can align their team, attract early adopters, and sustain resilience during setbacks. Eric Ries’s *The Lean Startup* complements this by framing purpose as the north star around which hypotheses and experiments orbit. Together