split</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">)[:</span><span class="o">-</span><span class="mi">3</span><span class="p">])</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;embryonic&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
    <span class="n">new_cols</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">new_name