<xs:schema
   xmlns:xs="http://www.w3.org/2001/XMLSchema"
   xmlns:nw="http://openuri.org/nameworld"
   targetNamespace="http://openuri.org/nameworld"
   elementFormDefault="qualified">

  <xs:element name="nameworld">
    <xs:complexType>
      <xs:sequence maxOccurs="unbounded">
        <xs:element name="island">
          <xs:complexType>
            <xs:sequence maxOccurs="unbounded">
              <xs:element name="location" type="nw:loc"/>
            </xs:sequence>
            <xs:attribute name="targetNamespace" type="xs:string"/>
          </xs:complexType>
        </xs:element>
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:complexType name="loc">
    <xs:sequence maxOccurs="unbounded">
      <xs:element name="reference">
        <xs:complexType>
          <xs:attribute name="to" type="xs:QName"/>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
    <xs:attribute name="name" type="xs:string"/>
  </xs:complexType>

</xs:schema>