The Topical Authority Cluster Builder

Act as an SEO architect. Help me construct a pillar-style keyword cluster for my product page to signal comprehensive coverage to search engines.

• Primary Keyword: [e.g., "meal prep containers"]
• Product Name: [e.g., "5-Compartment BPA-Free Meal Prep Containers"]

Task: Generate a primary keyword cluster consisting of 7 closely related subtopics or question keywords. This cluster should form the content outline for a truly authoritative product page.