pan> <span class="p">(</span><span class="ss">:physenv</span> <span class="ss">#:physenv</span><span class="p">)</span>
 <span class="p">(</span><span class="ss">:loop-depth</span> <span class="ss">#:loop-depth</span><span class="p">)</span> <span class="p">(</span><span class="ss">:vertex</span> <span class="ss">#:vertex</span><span class="p">))</span>
</pre></div>
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