title: SWRL: restrict a rule to a specific individual
body: <p>Lets say there is a class "Food" containing  individuals  "Grain" and "Fruit" . 
  If i want to select  Grain i can assign a <code>food_type</code> data Property to individuals </p>
  
  <pre><code>(class) Food
      (ind_1) Grain   food_type ---&gt; "grain_food"
      (ind_2) Fruit   food_type ---&gt; "fruit_food"
  </code></pre>
  
  <p>and run this code:</p>
  
  <pre><code>  Food(?x) ^ food_type(?x,"grain_food") -&gt; sqwrl:select(?x)
  </code></pre>
  
  <p>but what if i want to do this job (select  <code>Grain</code> individual) without the needing to <code>food_type</code> property? is it possible to directly point to a specific individual just by its name?</p>