<?xml version="1.0"?>
<pml_schema version="1.1" xmlns="http://ufal.mff.cuni.cz/pdt/pml/schema/">
  <revision>0.2</revision>
  <description>Example of tokenization layer</description>
  <root name="tokenization">
    <structure>
      <member name="sentences">
	<list ordered="1" type="sentence.type"/>
      </member>
    </structure>
  </root>
  <type name="sentence.type">
    <structure>
      <member name="id" role="#ID" type="ID.type"
	required="1" as_attribute="1"/>
      <member name="tokens"> <!-- words (tokens) -->
        <sequence>
          <element name="w" type="w.type"/>
        </sequence>
      </member>
    </structure>
  </type>
  <type name="w.type">
    <container>
      <attribute name="id" role="#ID" type="ID.type"
	required="1"/>
      <cdata format="any"/>
    </container>
  </type>
  <type name="ID.type">
    <cdata format="ID"/>
  </type>
</pml_schema>