<parent_document>
    <some_node>xaxa</some_node>
    <some_node>#{placeholder 1}</some_node>
    <some_node>xaxa</some_node>
    <parents_parent_node>
        <some_node>#{placeholder 1}</some_node>
        <some_node>xaxa</some_node>
        <parent_node>
            <some_node>#{placeholder 2}</some_node>
            <some_node>#{placeholder 2}</some_node>
        </parent_node>
        <some_node>#{placeholder 2}</some_node>
    </parents_parent_node>
    <some_node>xaxa</some_node>
</parent_document>