title: create rules from sentence prolog
body: <p>I have next sentence:</p>
  <p>John is a footballer. Mary is an actress. All of Mary's friends are footballers and are blond (<em>their hair</em>). All of John's friends are footballers or actors.</p>
  <p>How could I get into prolog <strong>last two</strong> sentences if I did first two.</p>
  <pre><code>footballer(john).
  actor(Mary).
  </code></pre>