We need to produce a 2-3 sentence plain-text summary in English, objective, factual, no marketing language, no superlatives, no calls to action. At most 60 words. Summarize skill: Market Research and Competitive Analysis: calculates TAM/SAM/SOM, competitor analysis (20+ companies, 3 tiers), identifies market trends, validates business ideas, used for market analysis, idea validation, entering new markets. Provide summary. We need to ensure no bullet points, no headings, no markdown. Just plain sentences. Word count: aim ~45-55 words.