<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE superheroes SYSTEM "01-xml-dtd-01.dtd">
<superheroes>
	<batalla>
		<superheroe>Spiderman</superheroe>
		<supervillano>Venon</supervillano>
	</batalla>
	<batalla>
		<superheroe>Hulk</superheroe>
		<supervillano>Thanos</supervillano>
	</batalla>
</superheroes>