Bulldog class
... that all four of the Royal Navy's Bulldog class survey vessels were built by Brooke Marine?
... that all four of the <a href="./Royal_Navy" id="mwBcs" rel="mw:WikiLink" title="Royal Navy">Royal Navy</a>'s <b id="mwBcw"><a class="mw-redirect" href="./Bulldog_class_survey_vessel" id="mwBc0" rel="mw:WikiLink" title="Bulldog class survey vessel"><i id="mwBc4">Bulldog</i> class</a></b> <a href="./Survey_vessel" id="mwBc8" rel="mw:WikiLink" title="Survey vessel">survey vessels</a> were built by <a href="./Brooke_Marine" id="mwBdA" rel="mw:WikiLink" title="Brooke Marine">Brooke Marine</a>?