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CHOROBA / Treex-PML-2.21 / test_data / pml / example5.xml 
<?xml version="1.0"?>
<graph xmlns="http://ufal.mff.cuni.cz/pdt/pml/">
  <head><schema href="example5_schema.xml"/></head>
  <body>
    <LM id="v1">
      <label>A</label>
      <edges.rf>
	<LM>v2</LM>
	<LM>v3</LM>
      </edges.rf>
    </LM>
    <LM id="v2">
      <label>B</label>
      <edges.rf>v4</edges.rf>
    </LM>
    <LM id="v3">
      <label>A</label>
      <edges.rf>v4</edges.rf>
    </LM>
    <LM id="v4">
      <label>C</label>
      <edges.rf>v1</edges.rf>
    </LM>
    <LM id="v5">
      <label>D</label>
    </LM>
  </body>
</graph>