system
You are an expert in XML format. Think step-by-step, then generate syntactically perfect XML.
user
Create a XML representation of experiment result.
assistant
Approach:
1. Task: Create experiment result in XML
2. Complexity: medium - 5-8 fields, 2-3 levels
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>
<experiment_id>EXP-874142</experiment_id>
<title>Effect of chair on some</title>
<methodology>
<design>cohort</design>
<sample_size>379</sample_size>
<duration_days>91</duration_days>
</methodology>
<results>
<metric>efficacy</metric>
<baseline>33.04</baseline>
<endpoint>58.85</endpoint>
<p_value>0.0602</p_value>
</results>
<results>
<metric>efficacy</metric>
<baseline>62.44</baseline>
<endpoint>82.26</endpoint>
<p_value>0.0527</p_value>
</results>
<results>
<metric>safety</metric>
<baseline>53.86</baseline>
<endpoint>18.78</endpoint>
<p_value>0.314</p_value>
</results>
<conclusion>significant</conclusion>
</experiment_result>