XML, specifying label style:
<list list-type="order"> <title>Favorite Dog Breeds</title> <list-item><p>Companion Dogs <list list-type="order"> <list-item><p>Bichon Frise</p></list-item> <list-item><p>Coton de Tulear</p></list-item> </list> </list-item></p> <list-item><p>Hound Dogs</p></list-item> <list-item><p>Sporting Dogs</p></list-item> <list-item><p>Working Dogs</p></list-item> </list>