<para>
Although input data can take any form, it is sometimes useful to
describe the record processing capabilities of the system in terms of
a single, canonical input format that gives access to the full
spectrum of structure and flexibility in the system. In &zebra;, this
<para>
Although input data can take any form, it is sometimes useful to
describe the record processing capabilities of the system in terms of
a single, canonical input format that gives access to the full
spectrum of structure and flexibility in the system. In &zebra;, this