<?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"/>
     <node id="n7"/>
     <node id="n8"/>
     <node id="n9"/>
     <node id="n10"/>
     <edge source="n0" target="n2"/>
     <edge source="n1" target="n2"/>
     <edge source="n2" target="n3"/>
     <edge source="n3" target="n5"/>
     <edge source="n3" target="n4"/>
     <edge source="n4" target="n6"/>
     <edge source="n6" target="n5"/>
     <edge source="n5" target="n7"/>
     <edge source="n6" target="n8"/>
     <edge source="n8" target="n7"/>
     <edge source="n8" target="n9"/>
     <edge source="n8" target="n10"/>
   </graph>

</graphml>

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