<a xmlns="comments" xmlns:this="comments" xmlns:foo="http://fooz"><!-- this is a comment 1 -->
    <b /><!-- this is a comment 2 -->
    <c>123456</c>
    <!-- this is a comment 4 -->
    <b><!-- this is a comment 5 -->asdsa</b>
    <c >12323<!-- this is a comment 6 --></c>
	    <!-- this is a comment 7 -->
	    <d> <!-- this is a comment 8 --> </d>
	    <!-- final comment -->
</a>