ecial">:</span> <span class="identifier">grammar</span><span class="special">&lt;</span><span class="identifier">output_iterator_type</span><span class="special">,</span> <span class="identifier">space_type</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;()&gt;</span>
<span class="special">{</span>
    <span class="identifier"