<?xml encoding="UTF-8" ?>

<!-- Optional namespace space prefix -->

<!ENTITY % ns "">

<!ENTITY % catalog "%ns;catalog">
<!ENTITY % public "%ns;public">

<!ELEMENT %catalog; (%public;)*>

<!ELEMENT %public; EMPTY>
<!ATTLIST %public;
    publicId    CDATA #REQUIRED
    uri         CDATA #REQUIRED
>
