<schema targetNamespace="http://www.example.com/IPO"
        xmlns="http://www.w3.org/2001/XMLSchema"
		elementFormDefault="qualified"
        xmlns:ipo="http://www.example.com/IPO">

  <annotation>
    <documentation xml:lang="en">
      Defines one comment element with content and one without 
    </documentation>
  </annotation>

  <element name="root">
  <complexType>
  <sequence>
  <element name="text">
	  <complexType>
	  	<sequence>
			<element name="comment" type="string"/>
		</sequence>
	  </complexType>
  </element>
  	<element name="comment">
	<complexType>
	<sequence><element name="p" type="string"/></sequence>
	</complexType>
	</element>
  </sequence></complexType>
  </element>


</schema>