Question: 4 . ( 2 0 points ) Given a relation R = { P , Q , R , S , T } with the

4.(20 points) Given a relation R={P, Q, R, S, T} with the following functional dependencies: PQ->R RS -> T ST->Q Decompose R into 3 NF relations. Show your work to receive full credit.Consider a relation R(P,Q,R,S,T) with the set of
functional dependencies , and
TP}. How many super keys are possible in R?
4.(20 points) Given a relation R={P, Q, R, S, T} with

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