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Consider the following ER diagram. M1 M2 M3 P1 P2 N1 N2 m M R1 P R2 N What is the minimum number of relations

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Consider the following ER diagram. M1 M2 M3 P1 P2 N1 N2 m M R1 P R2 N What is the minimum number of relations needed to mapping the above ER into a relation model

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