<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd">
  <graph id="G" edgedefault="undirected">
    <node id="n0"/>
    <node id="n1"/>
    <node id="n2"/>
    <node id="n3"/>
    <node id="n4"/>
    <node id="n5"/>
    <node id="n6"/>
    <hyperedge>
       <endpoint node="n0"/>
       <endpoint node="n1"/>
       <endpoint node="n2"/>
     </hyperedge>
    <hyperedge>
       <endpoint node="n3"/>
       <endpoint node="n4"/>
       <endpoint node="n5"/>
       <endpoint node="n6"/>
     </hyperedge>
    <hyperedge>
       <endpoint node="n1"/>
       <endpoint node="n3"/>
     </hyperedge>
    <edge source="n0" target="n4"/>
  </graph>
</graphml>