>
<a href="terminology.html#must-requirement" id="must-requirement_xref42">must</a>
          not contain any
          <a href="syntax.html#syntax-ambiguous-ampersand" id="syntax-ambiguous-ampersand_xref1">ambiguous ampersands</a>
</li>
          <li>
<a href="terminology.html#must-requirement" id="must-requirement_xref43">must</a>
          not contain any occurrences of the string
          "<code title="U+003C LESS-THAN SIGN, U+002F SOLIDUS">&lt;/</code>"
          followed by characters that are a
    