unction</span><span class="op">(</span><span class="va">x</span><span class="op">)</span> <span class="fu"><a href="https://rdrr.io/r/base/grep.html" class="external-link">grepl</a></span><span class="op">(</span><span class="va">x</span>, <span class="fu"><a href="https://rdrr.io/r/base/labels.html" class="external-link">labels</a></span><span class="op">(</span><span class="va">dend</span><span class="op">)</span><span class="op">)</span><span class="op">)</span></span></span>
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