tornado outbreak
...that the Northeastern United States was struck by a major tornado outbreak on July 10, 1989?
...that the <a href="./Northeastern_United_States" id="mwBjE" rel="mw:WikiLink" title="Northeastern United States">Northeastern United States</a> was struck by a major <b id="mwBjI"><a class="mw-redirect" href="./Northeastern_United_States_tornado_outbreak_of_1989" id="mwBjM" rel="mw:WikiLink" title="Northeastern United States tornado outbreak of 1989">tornado outbreak</a></b> on <a href="./July_10" id="mwBjQ" rel="mw:WikiLink" title="July 10">July 10</a>, <a href="./1989" id="mwBjU" rel="mw:WikiLink" title="1989">1989</a>?