<html xmlns:tal="http://purl.org/petal/1.0/">
<body>
<p>
<!--? Text -->
lc: <span tal:replace="lc: string: ALL_CAPS">lc</span>
uc: <span tal:replace="uc: string: all_lower">uc</span>
uc_first: <span tal:replace="uc_first: string: william mckee">uc_first</span>
</p>
</body>
</html>