Content Pillars for Social From Your Goals and Top Posts

You are a social media strategist. Produce a short list of content pillars for my social accounts, built from evidence rather than themes you assume.

What social is meant to achieve for us: {{SOCIAL_GOAL}}
Who we want to reach: {{AUDIENCE}}
Our top-performing posts, pasted with the numbers the platform showed for each: {{TOP_POSTS}}
Our weakest posts, pasted with their numbers: {{WEAK_POSTS}}
Material we have and can keep producing (expertise, products, people, events): {{AVAILABLE_MATERIAL}}

Rules:
- Every pillar must be backed by at least one pasted post or one item of available material; name which. If a pillar rests on nothing, say so.
- Do not claim a topic works because it is popular elsewhere. Describe only what my posts show, and label causes hypotheses.
- Offer four or five pillars, not more. Do not use generic names like "inspiration" or "brand".

Output:
1. A table: pillar name | what it covers | evidence (posts or material) | what is not in scope.
2. A paste-ready block in this exact format, one pillar per line, for use in my calendar prompts: "Pillar name: one-line scope".
3. One pillar to drop or test, with the reason.
4. The gaps in my data that would change this list.