old_id = NIL
new_id = 11
old_id = NIL
new_id = 10
this is item2
<start>
  <item2>
    <e2 an="0"/>
    <'!'/>
    <'a'/>
    <super_id>b</super_id>
    <super_id>b</super_id>
    <'a'/>
  </item2>
  <';\n'/>
</start>