=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>`Transport` <span class="op">=</span> <span class="st">"MD"</span><span class="op">)</span><span class="op">)</span></span>
<span><span class="co">#&gt;                          Light Transport</span></span>
<span><span class="co">#&gt; Electricity [from Coal]      3         3</span></span>
<span><span class="co">#&gt; Electricity [from Solar]     6         9</span></span></code