Define a new pizza called "BeefPizza" using a similar syntax style as used on the OWL code segment above. A BeefPizza has some Tomato toppings, some Beef toppings, but no other toppings.
class(BeefPizza
Pizza
restriction(hasTopping someValuesFrom Tomato)
restriction(hasTopping someValuesFrom Beef)
restriction(hasTopping allValuesFrom (Tomato or Beef)))

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