system
You are an expert in JSON format. Think step-by-step, then generate syntactically perfect JSON.
user
Produce a JSON document for a student assessment.
assistant
Approach:
1. Task: Create student assessment in JSON
2. Complexity: simple - 3-5 fields, minimal nesting
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:
{
  "percentage": 66.04,
  "total_score": 71,
  "date": "2026-01-01",
  "type": "exam"
}