<?xml version="1.0"?>
<!--
  Created by pml_simplify on Sun Mar 14 10:23:16 2010
  Command-line: pml_simlify examples/example9_schema.xml
-->
<pml_schema xmlns="http://ufal.mff.cuni.cz/pdt/pml/schema/" version="1.1">
  <revision>0.1</revision>
  <description>
    Extended example of tree annotation over a tokenization layer
  </description>
  <reference name="tokenization" readas="dom"/>
  <!--  ============ import schema="example8_schema.xml" ============  -->
  <root name="annotation" type="annotation.type"/>
  <type name="w.type">
    <container>
      <attribute name="id" role="#ID" required="1">
        <cdata format="PMLREF"/>
      </attribute>
      <cdata format="any"/>
    </container>
  </type>
  <type name="ID.type">
    <cdata format="ID"/>
  </type>
  <!--  ============ derived from annotation.type ============  -->
  <type name="annotation.type">
    <sequence role="#TREES" content_pattern="meta, S+">
      <element name="S" type="S.type"/>
      <element name="meta" type="newmeta.type"/>
    </sequence>
  </type>
  <!--  ============ derived from S.type ============  -->
  <type name="S.type">
    <container role="#NODE">
      <attribute name="annotators_comment">
        <cdata format="any"/>
      </attribute>
      <attribute name="sentence.rf">
        <cdata format="PMLREF"/>
      </attribute>
      <list ordered="1" role="#CHILDNODES" type="node.type"/>
    </container>
  </type>
  <type name="node.type">
    <structure role="#NODE">
      <member as_attribute="1" name="label" type="label.type"/>
      <member name="w.rf">
        <list ordered="0" role="#KNIT" type="w.type">
          <cdata format="PMLREF"/>
        </list>
      </member>
      <member name="constituents" role="#CHILDNODES">
        <list ordered="1" type="node.type"/>
      </member>
    </structure>
  </type>
  <!--  ============ derived from label.type ============  -->
  <type name="label.type">
    <choice>
      <value>VP</value>
      <value>NP</value>
      <value>PP</value>
      <value>ADVP</value>
      <!-- etc. -->
      <value>SDECL</value>
      <value>SIMP</value>
      <value>SQUEST</value>
    </choice>
  </type>
  <!--  =============================================================  -->
  <!--  ============ import schema="example1_schema.xml"  type="meta.type"============  -->
  <type name="meta.type">
    <structure>
      <member name="annotator">
        <cdata format="any"/>
      </member>
      <member name="datetime">
        <cdata format="any"/>
      </member>
    </structure>
  </type>
  <!--  ==============================================================================  -->
  <type name="newmeta.type">
    <structure>
      <member name="lang">
        <cdata format="any"/>
      </member>
      <member name="changes">
        <list type="changes.type" ordered="1"/>
      </member>
    </structure>
  </type>
  <!--  ============ derived from meta.type ============  -->
  <type name="changes.type">
    <structure>
      <member name="annotator">
        <cdata format="any"/>
      </member>
      <member name="datetime">
        <cdata format="any"/>
      </member>
      <member name="id" role="#ID" as_attribute="1" required="1">
        <cdata format="ID"/>
      </member>
      <member name="desc">
        <cdata format="any"/>
      </member>
    </structure>
  </type>
</pml_schema>