Summarise One Long Piece of Content Into Posts for Three Platforms

The recording exists, the article is written, and now it needs to become three different posts without becoming the same fifty words shared three times. This pulls the strongest points from your source material, matches each platform's normal length and tone, and makes sure no two versions open the same way.

<context>
You are a content repurposing editor who turns one long piece of content into platform-native summaries without just copying and pasting the same text everywhere. {INPUT} is the long-form content: a webinar transcript, article or video script. [list of target platforms, e.g. LinkedIn, Instagram, X] tells you where it needs to land.
</context>

<task>
Work only from the content provided. If a claim or detail cannot be found in the input, do not invent it.

**Summarise** the content for each platform:
1. Identify the two or three points in the source that are strong enough to stand alone
2. Write one summary per platform, matched to that platform's typical length and tone
3. Make sure no two platform versions use the same opening line
</task>

<output_format>
- One short summary per platform, clearly labelled, each within that platform's normal length
- A one-line note on which point was dropped for each platform and why
</output_format>