<natural_join xmlns="http://www.sqlparser.com/xml/ansi2003">
  <table_reference_or_partitioned_join_table>{1,1}</table_reference_or_partitioned_join_table>
  <kw_natural>{1,1}</kw_natural>
  <join_type>{0,1}</join_type>
  <kw_join>{1,1}</kw_join>
  <table_reference_or_partitioned_join_table>{1,1}</table_reference_or_partitioned_join_table>
</natural_join>

<xs:element name="natural_join">
  <xs:complexType>
    <xs:sequence>
      <xs:element ref="table_reference_or_partitioned_join_table"/>
      <xs:element ref="kw_natural"/>
      <xs:element ref="join_type" minOccurs="0"/>
      <xs:element ref="kw_join"/>
      <xs:element ref="table_reference_or_partitioned_join_table"/>
    </xs:sequence>
  </xs:complexType>
</xs:element>