xxx data
aaa data
<address>
<state>address1</state>
<ref refid="aff1">1</ref>
<ref refid="aff2">2</ref>
<ref refid="aff4">4</ref>
<ref refid="e2"/>
<ref refid="e4"/>
</address>
<address>
<state>address1</state>
<ref refid="aff1">1</ref>
<ref refid="aff2">2</ref>
<ref refid="aff3">3</ref>
<ref refid="e4"/>
</address>
xxx data
aaa data