text: **Exercise 26: Create an InterestingPizza that has at least three toppings**
  
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  1. Create a subclass of Pizza called InterestingPizza. 
  
  2. Click on the Add icon (+) next to the SubClass Of field. Use the Class expression editor tab and enter 
  hasTopping min 3 PizzaTopping and click on OK. 
  
  3. Make sure InterestingPizza is still selected and use the Edit>Convert to defined class option to turn 
  InterestingPizza into a defined class. 
  
  4. Run the reasoner. 
  
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