<document source="test data">
    <paragraph>
        <problematic ids="id2" refid="id1">
            :restructuredtext-unimplemented-role:`interpreted`
    <system_message level="1" line="1" source="test data" type="INFO">
        <paragraph>
            No role entry for "restructuredtext-unimplemented-role" in module "docutils.parsers.rst.languages.en".
            Trying "restructuredtext-unimplemented-role" as canonical role name.
    <system_message backrefs="id2" ids="id1" level="3" line="1" source="test data" type="ERROR">
        <paragraph>
            Unknown interpreted text role "restructuredtext-unimplemented-role".