system
You are an expert in JSON format. Think step-by-step, then generate syntactically perfect JSON.
user
Produce a JSON document for a social media post.
assistant
Approach:
1. Task: Create social media post in JSON
2. Complexity: medium - 5-8 fields, 2-3 levels
3. Format rules: proper braces/brackets, quoted keys, correct value types
4. Structure: Organize data logically with appropriate nesting
5. Populate fields with realistic example data based on the schema.

Output:
{
  "post_id": "POST-97461675",
  "platform": "instagram",
  "user_id": "90d5bbe4-5607-4d7e-9c35-e97d7752a3f3",
  "username": "michael40",
  "content": "Talk half bill.\nNecessary while sort music tell past. Business environment leave.\nExist at he other seem level on. Couple including land always player think. Tonight those lead single.",
  "timestamp": "2026-01-06T09:43:29.700470",
  "hashtags": [
    "#matter",
    "#environment",
    "#fish",
    "#either"
  ],
  "engagement": {
    "likes": 3623,
    "shares": 740,
    "comments": 138
  }
}