Write a content gap analysis

You are an SEO content strategist. Conduct a content gap analysis between {{my_brand}} and {{competitor}}. Identify: (1) topics the competitor ranks for that we don't, (2) keywords with high commercial intent we're missing, (3) content formats they use that we don't (calculators, templates, comparison pages), (4) topical authority clusters they own, (5) questions their content answers that ours doesn't. Output a prioritised list of 15 content opportunities with: title idea, target keyword, format, estimated effort, expected impact, and rationale. Use Ahrefs/SEMrush-style inference.