We need to output JSON only with fields: seo_title, summary, key_entities, expert_faq, internal_link_anchor, primary_keyword, secondary_keywords, content_type.

We must produce a summary of 180-250 words across 3-4 paragraphs separated by double newlines (\n\n). Must bold 3-5 key details across entire summary using double asterisks. Must not over-bold. Must not use banned words etc.

We must include key_entities with companies, people, locations arrays based on source. Source mentions "Taylor Swift", "athlete", "Madison Square Garden". So companies? maybe none. People: "Taylor Swift", "the athlete" (unnamed). locations: "Madison Square Garden". Also maybe "pop star". But we list only explicitly mentioned entities.

We must also include expert_faq with question and answer based on article content.

internal_link_anchor: 2-4 word topic phrase.

primary_keyword: single most important 2-3 word phrase this article should rank for.

secondary_keywords: 3-5 relevant keywords.

content_type: likely "news".

We must also ensure summary word count 180-250 words total across paragraphs. Must be exactly 3-4 paragraphs. Each paragraph 45-65 words. Let's aim for 4 paragraphs of ~50 words each => total ~200 words.

We must bold 3-5 key details across entire summary. Bold only the most newsworthy specifics: maybe Taylor Swift, Madison Square Garden, 100 guests? But 100 guests is a number from source? It says "about 100 guests". That's a figure. Could bold that. Also maybe pop star. But we need 3-5 bolded terms across entire summary. Let's bold Taylor Swift, Madison Square Garden, 100 guests. That's three. Could also bold athlete? But that's generic. Let's bold those three.

We must not bold generic words like "announced". So just those three.

We must ensure bold formatting uses double asterisks around the term. So Taylor Swift, Madison Square Garden, 100 guests.

We must not bold more than 5 terms. So three is fine.

Now craft summary pa