<Books>
    <Book>
        <ItemReference>
            <ClassificationCode listID="FulfillmentItemCode">Book1</ClassificationCode>
            <ClassificationCode listID="Property2"/>
            <ClassificationCode listID="Property3"/>
        </ItemReference>
    </Book>

    <Book>
        <ItemReference>
            <ClassificationCode listID="Name">Book2</ClassificationCode>
            <ClassificationCode listID="Property2"/>
            <ClassificationCode listID="Property3"/>
        </ItemReference>
    </Book>

    <Book>
        <ItemReference>
            <ClassificationCode listID="Name">Book1</ClassificationCode>
            <ClassificationCode listID="Property2"/>
            <ClassificationCode listID="Property3"/>
        </ItemReference>
    </Book>

    <Book>
        <ItemReference>
            <ClassificationCode listID="Name">Book4</ClassificationCode>
            <ClassificationCode listID="Property2"/>
            <ClassificationCode listID="Property3"/>
        </ItemReference>
    </Book>
</Books>