We need to produce JSON with fields: summary, category, article_html. The article must be SEO article about best books to read best sellers romantic books to read best sellers. So the primary keyword likely "best romantic books to read". Must have exactly one H1 at start with primary keyword. Other sections H2 and H3. Each section: 2-3 P tags, each 100-150 words. Need at least 1500 words total. That's a lot. We need to produce full article, but we can approximate word counts. Each p 100-150 words. Suppose we have 7 H2 sections, each with 2 P tags => 14 P tags. If 120 words each => 1680 words. That meets requirement. We'll need to keep within JSON string, escaping quotes. Provide article_html string with all tags. Must escape double quotes inside string. Use \t or just simple. Ensure JSON is valid with proper escaping. We need to include book recommendations, authors, key takeaways. Also lists UL/OL with 5-10 items. Also strong tags for key terms. End with 3-5 FAQ questions as H3. So at end, after sections, add FAQ H3 headings each with a paragraph answer? The rule says end with 3-5 FAQ questions as H3. Likely each H3 with question, but no answer? But better to provide answer maybe. But requirement says "FAQ questions as H3" maybe just question. We'll do H3 with question and then p with answer. But ensure it's H3. Also we need to maintain 5-7 main sections H2. We'll do 6 H2 sections. Let's design: H1: "Best Romantic Books to Read: Top Best Sellers for 2026" H2 sections: 1. "Why Romantic Best Sellers Matter" 2. "Classic Romance Best Sellers You Can't Miss" 3. "Contemporary Love Stories That Top Charts" 4. "New Releases in Romantic Best Sellers" 5. "Top Romance Series Worth Reading" 6. "How to Choose Your Next Romantic Read" Add FAQ at end: 4 H3s: "What defines a best-selling romance novel?" etc. Now P tags: Each section 2 P tags. That's 12 P tags. Each 120 words. We'll craft approximate 120 words. We also need UL/OL lists: each maybe in section 2 and 3 and 4. We need strong tags for key terms like "best-selling romance novels", "author", etc. Word count: 12 paragraphs * 120 = 1440 words, plus headings etc maybe 1500+. We'll approximate. Now produce article_html as string. Must escape double quotes inside JSON. We'll use single quotes for string? JSON requires double quotes for keys and string values. Inside string, we need to escape double quotes. We'll escape with \". Also we need to escape backslashes. Use \n optionally. We need to produce JSON object: {"summary": "...", "category":"howto","article_html":"..."}. Summary: 2-3 sentences meta description 150-160 chars. Let's craft: "Discover the ultimate list of best-selling romantic books for 2026. From timeless classics to fresh new releases, find your next love story and why they captivate readers worldwide." Count chars: Let's count: "Discover the ultimate list of best-selling romantic books for 2026. From timeless classics to fresh new releases, find your next love story and why they captivate readers worldwide." Let's count: Discover(8) space1=1 =>9 the(3)=3 ->12 ultimate(8)=8 ->20 list(4)=4 ->24 of(2)=2 ->26 best-selling(12)=12 ->38 romantic(8)=8 ->46 books(5)=5 ->51 for(3)=3 ->54 2026(4)=4 ->58 .(1)=1 ->59 space=1 ->60 From(4)=4 ->64 timeless(8)=8 ->72 classics(8)=8 ->80 to(2)=2 ->82 fresh(5)=5 ->87 new(3)=3 ->90 releases,(9)=9 ->99 find(4)=4 ->103 your(4)=4 ->107 next(4)=4 ->111 love(4)=4 ->115 story(5)=5 ->120 and(3)=3 ->123 why(3)=3 ->126 they(4)=4 ->130 captivate(9)=9 ->139 readers(7)=7 ->146 worldwide(9)=9 ->155 . (1) ->156 So 156 chars. Good. Now produce article_html. Let's craft paragraphs. Paragraph 1 in section 1: 120 words. We must ensure each paragraph 100-150 words. We'll approximate. Let's write first paragraph: "Romantic best sellers have long been a staple of the literary world, offering readers a blend of emotional depth, compelling characters, and unforgettable plot twists. In 2026, the genre continues to thrive, attracting both new audiences and seasoned romantics alike. What sets these titles apart is not just their popularity but their ability to resonate across cultures, languages, and generations. From the sweeping epics of historical romance to the witty banter of contemporary love stories, each book invites readers into a world where heartbeats sync with page turns. By exploring why these narratives captivate millions, we can better understand the enduring appeal of love on the page." Count words maybe ~120. Good. Second paragraph: "The success of a romance novel often hinges on its relatability and the authenticity of its voice. Readers seek characters who mirror their hopes, fears, and aspirations, and authors who deliver that authenticity with nuanced dialogue and vivid setting. Moreover, the modern romance landscape has expanded to include diverse perspectives, LGBTQ+ narratives, and genre hybrids—such as romance with mystery or fantasy—that broaden the genre's reach. Publishers and readers alike recognize that a best-selling romance must balance high emotional stakes with a satisfying resolution, ensuring readers leave with both their hearts and minds enriched." Ok. Section 2: Classic Romance Best Sellers You Can't Miss Paragraph 1: talk about classics: Pride and Prejudice, Jane Eyre, etc. List 5-10 items. Paragraph 2: key takeaways. Paragraph 3 maybe? We need 2-3 paragraphs. We'll do 2 paragraphs. Paragraph 1 120 words. Paragraph 2 120 words. Add UL list inside paragraph? We can embed UL. Section 3: Contemporary Love Stories That Top Charts. Paragraph 1 120 words. Paragraph 2 120 words. Section 4: New Releases in Romantic Best Sellers. Paragraph 1 120 words. Paragraph 2 120 words. Section 5: Top Romance Series Worth Reading. Paragraph 1 120 words. Paragraph 2 120 words. Section 6: How to Choose Your Next Romantic Read. Paragraph 1 120 words. Paragraph 2 120 words. FAQ H3s: 4 questions. Now produce article_html string with proper escaping