Entrepreneur
... that in 1997, after winning the 2000 Guineas, the racehorse Entrepreneur started with the shortest odds at the Epsom Derby in fifty years?
... that in 1997, after winning the <a class="mw-redirect" href="./2000_Guineas" id="mwAtI" rel="mw:WikiLink" title="2000 Guineas">2000 Guineas</a>, the racehorse <b id="mwAtM"><a href="./Entrepreneur_(horse)" id="mwAtQ" rel="mw:WikiLink" title="Entrepreneur (horse)">Entrepreneur</a></b> started with the shortest odds at the <a href="./Epsom_Derby" id="mwAtU" rel="mw:WikiLink" title="Epsom Derby">Epsom Derby</a> in fifty years?