># print(&quot;work query:&quot;, lw)</span>
                <span class="c1"># print(&quot;rwork query:&quot;, lrw)</span>
                <span class="n">x11</span><span class="p">,</span> <span class="n">x12</span><span class="p">,</span> <span class="n">x21</span><span class="p">,</span> <span class="n">x22</span><span class="p">,</span> <span class="n">theta</span><span class="p">,</span> <span class="n">u1</span><span class="p">,</span> <span class="n">u2</span><span class="p">,</span> <span class="n"