<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
	   elementFormDefault="qualified"
	   attributeFormDefault="unqualified"
           xmlns:aaa="AAA"
           targetNamespace="AAA">
	<xs:complexType name="Y">
	  <xs:sequence>
            <xs:element nillable="true<caret>" />
          </xs:sequence>	
	</xs:complexType>
</xs:schema>