Failed to get data which is not equal

Hi,

<Item type='part'  action='get' select="id"   maxRecords='200'  >
  <Relationships>
    <Item type='Part Specification' action='get'  select='id,source_id,related_id'>
      <related_id>
        <Item type='Document'  action='get'  select="id"  maxRecords='200' >    
         <state condition="ne">Preliminary</state>
        </Item>
      </related_id>
    </Item>
  </Relationships>
</Item>

Still i am able to get the data which is having, document state Preliminary, i want to restrict the data.

Can anyone do this query ?

Thanks

Pankaj B