span> <span class="o">=</span> <span class="p">(</span>
        <span class="n">eps</span><span class="p">[</span><span class="s2">&quot;a&quot;</span><span class="p">],</span>
        <span class="n">eps</span><span class="p">[</span><span class="s2">&quot;b&quot;</span><span class="p">],</span>
        <span class="n">eps</span><span class="p">[</span><span class="s2">&quot;c&quot;</span><span class="p">],</span>
        <span class="n">eps</span><span class="p">[</span><span class="s2">&quot;d&quot;</spa