RMS Magdalena
... that RMS Magdalena was the third ship lost on her maiden voyage that had been built by Harland & Wolff, Belfast?
... that <b id="mwBBs"><a about="#mwt27" data-mw='{"parts":[{"template":{"target":{"wt":"RMS","href":"./Template:RMS"},"params":{"1":{"wt":"Magdalena"},"2":{"wt":"1948"},"3":{"wt":"6"}},"i":0}}]}' href="./RMS_Magdalena_(1948)" id="mwBBw" rel="mw:WikiLink" title="RMS Magdalena (1948)" typeof="mw:Transclusion">RMS<span typeof="mw:Entity"> </span><i>Magdalena</i></a></b> was the third ship lost on her maiden voyage that had been built by <a class="mw-redirect" href="./Harland_and_Wolff" id="mwBB0" rel="mw:WikiLink" title="Harland and Wolff">Harland &amp; Wolff</a>, <a href="./Belfast" id="mwBB4" rel="mw:WikiLink" title="Belfast">Belfast</a>?