<document source="test data">
    <paragraph>
        Skipping item 3:
    <enumerated_list enumtype="arabic" prefix="" suffix=".">
        <list_item>
            <paragraph>
                Item 1.
        <list_item>
            <paragraph>
                Item 2.
    <system_message level="2" line="5" source="test data" type="WARNING">
        <paragraph>
            Enumerated list ends without a blank line; unexpected unindent.
    <enumerated_list enumtype="arabic" prefix="" start="4" suffix=".">
        <list_item>
            <paragraph>
                Item 4.
    <system_message level="1" line="5" source="test data" type="INFO">
        <paragraph>
            Enumerated list start value not ordinal-1: "4" (ordinal 4)