Examine the data models that you created for Exercise D
Examine the data models that you created for Exercise D. How would the respective models change (if at all) on the basis of these corresponding new assumptions?
• Two patients have the same first and last names.
• Researchers can be associated with more than one institution.
• The store would like to keep track of purchased items.
• Many buyers have purchased multiple cars from Jim over time because he is such a good dealer.

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