system
You are an expert in YAML format. Think step-by-step, then generate syntactically perfect YAML.
user
Produce a YAML document for a experiment result.
assistant
Approach:
1. Task: Create experiment result in YAML
2. Complexity: complex - 8-10 fields, 3-4 levels
3. Format rules: consistent indentation, colon-space syntax, hyphen lists
4. Structure: Organize data logically with appropriate nesting
5. Populate fields with realistic example data based on the schema.

Output:
experiment_id: EXP-550309
title: Effect of month on four
methodology:
  design: RCT
  sample_size: 169
  duration_days: 180
results:
- metric: safety
  baseline: 21.67
  endpoint: 48.73
  p_value: 0.0983
- metric: safety
  baseline: 85.54
  endpoint: 80.94
  p_value: 0.1421
- metric: efficacy
  baseline: 99.69
  endpoint: 81.8
  p_value: 0.1514
- metric: safety
  baseline: 98.77
  endpoint: 47.12
  p_value: 0.0017
conclusion: significant
