return [=[
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Source: https://github.com/manoelcampos/xml2lua/blob/master/people.xml -->
<people>
    <person type="natural">
        <![CDATA[
        Just a CDATA tag that may contain anything, including XML code,
        such as <tag>message</tag>.
        Its content is extracted but not processed.
        ]]>  
        
        <!-- Just an example comment that will be ignored by the tree handler and processed by the other ones. -->
        
        <name>Manoel</name>
        <city>Palmas-TO</city>
  </person>
    <person type="natural">
        <name>Breno</name>
        <city>Palmas-TO</city>
    </person>
    <person type="legal">
        <name>University of Brasília</name>
        <city>Brasília-DF</city>
    </person>  
</people>
]=]