<?xml version="1.0" ?>
<Schema xmlns="urn:schemas-microsoft-com:xml-data"
        xmlns:dt="urn:schemas-microsoft-com:datatypes"
        xmlns:sql="urn:schemas-microsoft-com:xml-sql">

<ElementType name="book" content="textOnly"/>
<ElementType name="writer" content="textOnly"/>
<ElementType name="publish" content="textOnly"/>

<ElementType name="work" sql:relation="books">
    <element type="book"    sql:field="bookname"/>
    <element type="writer"  sql:field="bookwriter"/>
    <element type="publish" sql:field="bookpublish"/>
</ElementType>
</Schema>