<sect2 id="gpl-terms-and-conditions-section-4" xreflabel="Section 4">

    <title>Section 4</title>

    <para>You may not copy, modify, sublicense, or distribute the

    Program except as expressly provided under this License.  Any

    attempt otherwise to copy, modify, sublicense or distribute the

    Program is void, and will automatically terminate your rights

    under this License.  However, parties who have received copies, or

    rights, from you under this License will not have their licenses

    terminated so long as such parties remain in full

    compliance.</para>

</sect2>