railway accidents
... that the Hai Van Pass has been the scene of at least two of Vietnam's most serious railway accidents?
... that the <a class="mw-redirect" href="./Hai_Van_Pass" id="mwCFA" rel="mw:WikiLink" title="Hai Van Pass">Hai Van Pass</a> <i id="mwCFE">(pictured)</i> has been the scene of at least two of <a href="./Vietnam" id="mwCFI" rel="mw:WikiLink" title="Vietnam">Vietnam</a>'s most serious <b id="mwCFM"><a href="./Railway_accidents_in_Vietnam" id="mwCFQ" rel="mw:WikiLink" title="Railway accidents in Vietnam">railway accidents</a></b>?