Show at least one modification problem that will occur when inserting, updating, or

deleting data in the given list using given values. Then briefly talk about the problem

with examples using specific values in records or columns. Do not use general terms

or sentences that can be an answer to a different list or tables. You need to provide

the best answer showing you understood why we need to change from one table to

two tables using the specific field name$($s$)$ and values you see in this list. You won't

get any credit if you provide me vague answers.

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