-out co"><span class="r-pr">#&gt;</span>                                                                   biological_process</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1                                                                               &lt;NA&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2                                                                               &lt;NA&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3              