Silver Slipper
... that the Texas and Pacific's Silver Slipper two-car train had rubber-tired wheels and was prone to derailing?
... that the <a href="./Texas_and_Pacific_Railway" id="mwBz4" rel="mw:WikiLink" title="Texas and Pacific Railway">Texas and Pacific</a>'s <i id="mwBz8"><b id="mwB0A"><a class="mw-redirect" href="./Silver_Slipper_(train)" id="mwB0E" rel="mw:WikiLink" title="Silver Slipper (train)">Silver Slipper</a></b></i> two-car train had rubber-tired wheels and was prone to <a href="./Derailment" id="mwB0I" rel="mw:WikiLink" title="Derailment">derailing</a>?