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<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8>
<title><br></title>
</head>
<body>
<!-- is structured inline -->
<p>text <br class="class" lang="en"></p>
<!-- is strictly inline -->
<p>text <dfn><br class="class" lang="en"></dfn></p>
<!-- must be empty -->
</body>
</html>