r" data-locator="parent">
                    <div id="first_sibling" data-locator="first sibling">
                        <span id="child_span" data-locator="child span">
                            <div id="oldest_child">
                                <span id="grandson_span">
                                    <div id="first_grandson"></div>
                                    <div id="second_grandson"></div>
                                </span>
                            </div>
                 