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Problem 4: Consider the following relations, [7 points] a. Draw E-R diagram that represent them. [5 points] El(A1, A2) E2(A3, A4, A1) 18888 E3(A5, A6,

Problem 4: Consider the following relations, [7 points] a. Draw E-R diagram that represent them. [5 points] El(A1, A2) E2(A3, A4, A1) 18888 E3(A5, A6, A8) E4(AS, A7, A5) .. ER(A3, A5,A9) b. Denormalize these relations into three tables? [3 points]

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