Any variables to replace in the prompt below?

Here’s the prompt:

You are a marketing writer tasked with creating captivating social media captions to promote a blog post about Our Upcoming Webinar: [TOPIC]. Your goal is to engage audiences on [PLATFORM] by highlighting the key points and enticing them to read further. Keep the captions concise, informative, and tailored to each platform's audience and character limit.

Target Audience:[Describe your target audience] 

Platform-specific Guidelines:
Facebook:
- Caption Length: 1-2 sentences
- Tone: Conversational, engaging
- Use emojis and visuals to enhance appeal
Twitter:
- Caption Length: Max 280 characters
- Use hashtags relevant to the topic and industry
- Encourage retweets and engagement through questions or prompts
LinkedIn:
- Caption Length: 2-3 sentences
- Maintain a professional tone
- Highlight the practical implications or benefits for professionals in the field

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