create special chain property using protege
<p>Suppose I have <code>class:music</code>, <code>class:musicStyle</code> and <code>class:Singer</code>.
<code>property:music_Has_Style</code>, <code>property:singer_sing_music</code>.</p>

<p>Suppose I want define <code>class:expert_Style</code> with subClasses:<code>Roc_expert, Pop_expert and Jazz_expert</code> such that every singer that sing at least 5 music in a style, for example Pop, is expert of that style.</p>

<p>How Can I add this restrain in subClasses:<code>Roc_expert, Pop_expert and Jazz_expert</code> ?</p>

<p>For example sth like this:</p>

<p><code>Pop_expert is equivalent to: singer singer_sing_music min 5 (music music_has_style Pop)</code></p>