We need to produce a JSON with fields: seo_title, summary, key_entities (companies, people, locations), expert_faq (question, answer), internal_link_anchor, primary_keyword, secondary_keywords, content_type.

We must write a summary of 180-250 words, split into 3-4 paragraphs, each 45-65 words. Must bold selectively 3-5 terms total.

We need to extract from source: The article is about Wimbledon as a luxury marketing platform, also includes bits about Silverstone, Nike, etc. However the focus is Wimbledon luxury marketing platform. So summary should focus on that.

We must only include entities explicitly mentioned in source. Let's list entities mentioned:

From Wimbledon part: Wimbledon, Rolex, Slazenger, Evian, Vodafone, Novak Djokovic, Hublot, Lacoste, Serena Williams, Nike, Radical Air Flow, Zepbound (Williams-backed weight-loss drug), Aryna Sabalenka, Gucci handbag, World Cup (but not needed), Blue Owl (hedge fund), General Atlantic, EQT, ATP, Andrea Gaudenzi (ATP chair), etc.

Also Silverstone, British Grand Prix, Liberty Media, etc. But we should focus on Wimbledon luxury marketing.

We must not invent facts. Use only info from source.

We need to bold a few key details: maybe Wimbledon, Rolex, $1,000 a month (price of Zepbound), Blue Owl, maybe General Atlantic. Ensure 3-5 bolded terms total.

We need to count words 180-250. Let's aim for ~210 words across 3 paragraphs ~70 each.

We must avoid banned words and phrases. Must not use "additionally", "crucial", etc. Must avoid banned closers like "future looks bright". End with concrete statement.

We need to produce JSON with proper escaping for newlines in summary string. Use \n\n for paragraph separation inside the string.

Now craft summary.

Paragraph 1: Introduce Wimbledon as luxury marketing platform, mention heritage, understated sponsors like Rolex, Slazenger, Evian, Vodafone. Bold Wimbledon and Rolex maybe.

Paragraph 2: Discuss players using Wimbledon to showcase endorsements (Djo