IDENTITY + DEFINITION + STRUCTURE
Define classifications, properties, relationships, and logic
Blackberry1 is a type of Fruit
A Fruit is an Edible Thing
Blackberry2 is a type of Wireless E-mail Device
A Wireless E-mail Device is a Mobile Electronic Device
Properties of Edible Things:
Seasonal – Yes/No
Calories – #
Ingredients (optional) – other Edible Things
A Mobile Electronic Device can never be an Edible Thing.
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