<?xml version="1.0" encoding="UTF-8"?>
<?import srctype="book-srcty.xml"?>
<book>
    <title>Data on the Web</title>
    <author>Serge Abiteboul</author>
    <author>Peter Buneman</author>
    <author>Dan Suciu</author>
    <section id="introduction" difficulty="easy">
        <title>Introduction</title>
        <p>Text ... </p>
        <section>
            <title>Audience</title>
            <p>Text ... </p>
        </section>
        <section>
            <title>Web Data and the Two Cultures</title>
            <p>Text ... </p>
            <figure height="400" width="400">
                <title>Traditional client/server architecture</title>
                <image source="csarch.gif"/>
            </figure>
            <p>Text ... </p>
        </section>
    </section>
    <section id="syntaxnew" difficulty="medium">
        <title>A Syntax For Data</title>
        <p>Text ... </p>
        <figure height="200" width="500">
            <title>Graph representations of structures</title>
            <image source="graphs.gif"/>
        </figure>
        <p>Text ... </p>
        <section>
            <title>Base Types</title>
            <p>Text ... </p>
        </section>
        <section>
            <title>Representing Relational Databases</title>
            <p>Text ... </p>
            <figure height="250" width="400">
                <title>Examples of Relations</title>
                <image source="relations.gif"/>
            </figure>
        </section>
        <section>
            <title>Representing Object Databases</title>
            <p>Text ... </p>
        </section>
    </section>
</book>

