system
You are an expert in XML format. Think step-by-step, then generate syntactically perfect XML.
user
Produce a XML document for a experiment result.
assistant
Approach:
1. Task: Create experiment result in XML
2. Complexity: simple - 3-5 fields, minimal nesting
3. Format rules: well-formed tags, proper nesting, escaped special chars
4. Structure: Organize data logically with appropriate nesting
5. Populate fields with realistic example data based on the schema.

Output:
<?xml version="1.0" encoding="UTF-8"?>
<experiment_result>
<results>
<metric>safety</metric>
<baseline>55.26</baseline>
<endpoint>17.47</endpoint>
<p_value>0.0413</p_value>
</results>
<results>
<metric>efficacy</metric>
<baseline>79.7</baseline>
<endpoint>97.8</endpoint>
<p_value>0.1773</p_value>
</results>
<results>
<metric>safety</metric>
<baseline>91.05</baseline>
<endpoint>76.12</endpoint>
<p_value>0.2255</p_value>
</results>
<results>
<metric>safety</metric>
<baseline>31.72</baseline>
<endpoint>78.17</endpoint>
<p_value>0.2411</p_value>
</results>
<experiment_id>EXP-903961</experiment_id>
<methodology>
<design>cohort</design>
<sample_size>788</sample_size>
<duration_days>167</duration_days>
</methodology>
</experiment_result>