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

We must write summary 180-250 words, split into 3-4 paragraphs, each paragraph 45-65 words. Also need bold formatting with ** for key details, selective 3-5 bolded terms across entire summary.

We must only use info from source. The source is about Brazil World Cup 2026, Matheus Cunha importance, Carlo Ancelotti, Lucas Leiva commentary, etc.

We need to avoid banned words. Must not use words like "additionally", "crucial", etc. Also avoid certain phrases. Must end with concrete statement, not forward-looking platitude.

We need to count words. Let's craft summary about 210 words.

Paragraph 1 ~55 words, paragraph 2 ~55, paragraph 3 ~55, paragraph 4 ~55 if 4 paragraphs, but we can do 3 paragraphs each ~70? Requirement: 3-4 paragraphs, each 45-65 words. Let's do 3 paragraphs each about 65-70? Actually each 45-65, so total 135-195 for 3 paragraphs. Need 180-250 total, so maybe 4 paragraphs each ~55 => 220. Let's do 4 paragraphs each ~55-60.

We need bold terms: maybe Matheus Cunha, Carlo Ancelotti, Lucas Leiva, World Cup 2026, maybe Brazil. That's 5 bolded.

Make sure not to bold generic words.

Now craft paragraphs.

Paragraph 1: Introduce that Brazil's shape under Ancelotti, mention Matheus Cunha as key, mention Lucas Leiva commentary.

Paragraph 2: Explain Cunha's role as nine-and-a-half, his stats (three goals), how injuries (Raphinha hamster) helped shape lineup, mention formation shift 4-2-3-1 to 4-3-3.

Paragraph 3: Discuss defensive solidity, only one goal conceded, seven scored, back four more conservative, Casemiro protected by Paqueta, etc.

Paragraph 4: Conclude with current mood, public excitement, Leiva's hope, concrete statement: Brazil are smiling and winning.

Need to avoid banned words: "adaptable" maybe okay? Not banned. "key" is banned? The banned list includes "key". Yes "ke