ock block-4 block-menu-block-4 even" id="block-menu-block-4">
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              <h2 class="block-title">Development Platforms</h2>
            
    <div class="content clearfix">
      <div class="menu-block-wrapper menu-block-4 menu-name-main-menu parent-mlid-603 menu-level-1">
  <ul class="menu"><li class="first leaf menu-mlid-613 opencyc"><a href="/platform/opencyc">OpenCyc</a></li>
<li class="leaf menu-mlid-614 enterprisecyc"><a href="/platform/enterprisecyc" title="Comm