system
You are an expert in XML format. Think step-by-step, then generate syntactically perfect XML.
user
I need research paper details in XML structure.
assistant
Approach:
1. Task: Create research paper 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"?>
<research_paper>
<funding_source />
<publication>
<venue>Science</venue>
<year>2021</year>
<doi>10.1851/eQcz</doi>
</publication>
<paper_id>arXiv:2021.60506</paper_id>
<keywords>simple</keywords>
<keywords>language</keywords>
<keywords>senior</keywords>
<keywords>across</keywords>
<keywords>popular</keywords>
<authors>
<name>Melissa Phillips</name>
<affiliation>Jones, Padilla and Anderson</affiliation>
<email>fmason@example.com</email>
</authors>
<authors>
<name>Tamara Garcia</name>
<affiliation>Harris, Hardin and Burgess</affiliation>
<email>yeaton@example.org</email>
</authors>
</research_paper>