Out put is this!!
<?xml version='1.0' ?>
<sequence>
<class_list>
  <class name='Secana' born='0' extends-to='0'>
    <activation_list>
      <activation born='0' extends-to='0' offset='0' />
    </activation_list>
  </class>
</class_list>

<arrow_list>
</arrow_list>
</sequence>