>1</span>,</span>
<span>  constituents <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"SA"</span>, <span class="st">"O1"</span>, <span class="st">"K1"</span>, <span class="st">"M2"</span>, <span class="st">"S2"</span>, <span class="st">"M4"</span><span class="op">)</span>,</span>
<span>  sides <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  col <span class="op">=</span> <spa