title: clingo return the max subset
body: <p>I have the following code:</p>
  <pre><code>1{p(1..10)}10.
  :- p(I*2).
  </code></pre>
  <p>and it shows 31 answers, But I just need the max subset <code>p(1) p(3) p(5) p(7) p(9).</code>
  How can I do it?</p>
  <p><img src="https://i.stack.imgur.com/PfC29.png" alt="enter image description here" /></p>