tests/org.eclipse.wst.xml.validation.tests/testresources/samples/XMLExamples/XInclude/master.xsd

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

  <xs:element name="master">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="body" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="body"/>
</xs:schema>