Every tag we want to be able to find in the script needs a unique ID.

Set the id attribute of the heading tag to "winner".

<html><head>
<script src="script.js"></script></head><body><h1>Soccer team ratings</h1><h2 id="winner">Liverpool</h2><p>This team has an overall rating of 7.01.</p><h2 id="loser">Lyon</h2><p>This team has an overall rating of 6.91.</p></body>
</html>]]>

Make sure to assemble id="winner".