<root>
  <person>
    <name>John Doe</name>
    <age>30</age>
    <email>john.doe@example.com</email>
  </person>
  <person>
    <name>Jane Smith</name>
    <age>25</age>
    <email>jane.smith@example.com</email>
  </person>
  <book>
    <title>The Adventure Begins</title>
    <author>Robert Johnson</author>
    <year>2022</year>
  </book>
</root>
