<section_list><section title="Introduction" figcount="0"/><section title="Audience" figcount="0"/><section title="Web Data and the Two Cultures" figcount="1"/><section title="A Syntax For Data" figcount="1"/><section title="Base Types" figcount="0"/><section title="Representing Relational Databases" figcount="1"/><section title="Representing Object Databases" figcount="0"/></section_list>