<document source="test data">
    <paragraph>
        An option list starting with a block quote.
    <option_list>
        <option_list_item>
            <option_group>
                <option>
                    <option_string>
                        -b
            <description>
                <block_quote>
                    <paragraph>
                        Description of b option
                <paragraph>
                    Description actually starts with a block quote.