<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<xs:element name="example2" type="myBlock" />
<xs:complexType name="myBlock" >
  <xs:sequence> 
     <xs:element name="aaa" type="xs:string" /> 
  </xs:sequence> 
</xs:complexType>

</xs:schema>
