<?xml version="1.0"?>
<pml_schema version="1.1" xmlns="http://ufal.mff.cuni.cz/pdt/pml/schema/">
  <description>An oriented graph</description>
  <root name="graph">
    <structure>
      <member name="body" required="1">
	<list ordered="0">
	  <structure>
	    <member name="id" as_attribute="1" 
	      required="1" role="#ID">
	      <cdata format="ID"/>
	    </member>
	    <member name="label" required="1">
	      <cdata format="any"/>
	    </member>
	    <member name="edges.rf">
	      <list ordered="0">
		<cdata format="PMLREF"/>
	      </list>
	    </member>
	  </structure>
	</list>
      </member>
    </structure>
  </root>
</pml_schema>