例えば

<h_><p_>After 35 straight veto victories, intense
lobbying fails president with election in offing<p/>
<p_>By Elaine S. Povich<p/>
<p_>CHICAGO TRIBUNE<p/><h/>
<p_>WASHINGTON - Despite intense White House lobbying, Congress has
voted to override the veto of a cable television regulation bill,
dealing President Bush the first veto defeat of his presidency just
four weeks before the election.<p/>

というテキストのヘッダー部分の<h_>から<h/>のみを削除して

<p_>WASHINGTON - Despite intense White House lobbying, Congress has
voted to override the veto of a cable television regulation bill,
dealing President Bush the first veto defeat of his presidency just
four weeks before the election.<p/>

という部分だけを取り出したいのですがどのようにしたらよいのでしょうか。
よろしくお願いします。