<?xml version='1.0' encoding='utf-8'?>
<?xml-stylesheet type="text/xml" href="product-syndication.xsl"?>
<!DOCTYPE comparison SYSTEM "product-syndication.dtd">
<product-syndication>
    <data>
        <cat id="books">
            <title>Books</title>
            <desc>
                <p>
                    These are my books.
                </p>
            </desc>
            <cat id="fiction_books">
                <title>Fiction books</title>
                <prod id="little_women">
                    <title>Little Women</title>
                    <isbn disable="1" />
                    <desc>
                        <p>
                            Little Women by Louisa May Alcott.
                        </p>
                    </desc>
                </prod>
            </cat>
            <cat id="computer_books">
                <title>Computer books</title>
            </cat>
        </cat>
    </data>
</product-syndication>