Question: Question 2 [4 points] Let R = (A, B, C, D, E) be a relation and F = {A B, C D} be a set

Question 2 [4 points] Let R = (A, B, C, D,

Question 2 [4 points] Let R = (A, B, C, D, E) be a relation and F = {A B, C D} be a set of functional dependencies that hold over R. 2.1 Consider the following instance of R: A B 4 2 3 1 2 3 5 3 3 2 2 3 F 5 D 3 2 3 2 E 4 5 0 0 0 0 5 4 Does BCE A hold over schema R ? Briefly justify your answer. 2.2. Can you identify any other (nontrivial) dependencies that hold over relation R? If yes, give an example, if no, explain why not

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