mole
... that in Gibraltar, a mole's elbow is a site of control for the harbour?
... that in <a href="./Gibraltar" id="mwBRs" rel="mw:WikiLink" title="Gibraltar">Gibraltar</a>, a <b id="mwBRw"><a href="./North_Mole,_Gibraltar_Harbour" id="mwBR0" rel="mw:WikiLink" title="North Mole, Gibraltar Harbour">mole</a></b><span about="#mwt20" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwBR4" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> elbow is a site of control for the harbour?