nt">// author</span>
         <span class="identifier">set_of</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&gt;</span>  <span class="comment">// title</span>

<span class="special">&gt;</span> <span class="identifier">bm_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">bm_type</span><span class="special">::</span><span class="identif