<?xml version="1.0" encoding="UTF-8"?>
<document xmlns="http://commonmark.org/xml/1.0">
    <paragraph>
        <text>a</text>
        <html_inline>&lt;sup&gt;</html_inline>
        <text>2</text>
        <html_inline>&lt;/sup&gt;</html_inline>
        <text> + b</text>
        <html_inline>&lt;sup&gt;</html_inline>
        <text>2</text>
        <html_inline>&lt;/sup&gt;</html_inline>
        <text> = c</text>
        <html_inline>&lt;sup&gt;</html_inline>
        <text>2</text>
        <html_inline>&lt;/sup&gt;</html_inline>
    </paragraph>
</document>
