a.  Draw and Describe the meaning subtype-super type structure, and then give an example with your justification.

b. Draw and Describe the meaning of a weak relationship, and then give an example with your justification. 

c.   Describe the meaning of minimum cardinalities, and then give an example with your justification, draw the entities and the relationship of your example. 

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A subtypesupertype structure also known as a generalizationspecialization hierarchy is a way to model relationships between entities where one entity ... View the full answer