We need to produce JSON with fields. Word count 180-250 total across 3-4 paragraphs. Each paragraph 45-65 words. So 3 paragraphs of about 60 words each = 180 words. Or 4 paragraphs of 55 words each = 220. Must be exactly 180-250 words. Let's aim for 4 paragraphs, each about 55-60 words, total maybe 220. Need to count words precisely.

We need to incorporate content: Europe's new climate in seven charts (BBC article). The article discusses extreme heatwaves in UK and Europe, record temperatures, scientific explanation, etc. Focus on technical significance, tools, practical applications? Actually category focus: "Focus on technical significance, tools, and practical applications." The article is about climate data visualization, charts, analysis. So we can talk about the charts as tools for understanding climate impacts, the technical aspects of data collection, analysis, and implications for engineering, building design, etc. But must not invent stats. Use only info from source. So mention that BBC created seven charts, data designers, etc. Mention that scientists say climate change made heatwaves more intense, record temps 37.7C, etc. Use specific figures: 37.7C in Lingwood, Norfolk; previous June high 35.6C; 2C+ break; 20C tropical nights; 39C in Alps; etc. Must bold key details: maybe BBC, 37.7C, 2C, June, heatwave. But need 3-5 bolded terms total across entire summary. Let's pick BBC, 37.7C, 2C, June, heatwave? That's 5. That's okay. Ensure only 3-5 bolded terms. Must be selective, not generic. So maybe bold BBC, 37.7C, 2C, heatwave. That's 4. That's fine.

We must avoid banned words/phrases. Let's check: banned words include "crucial", "delve", "emphasizing", "enduring", etc. Also "key", "landscape", etc. Also filler constructions. Also "the future looks bright". Also "stay tuned". Also "going forward". Also "at the end of the day". Also "I hope this helps". Also "let me know if". Also "without further ado"