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Please give real-life examples for the following situations: An entity set A and an entity set B, with a many-to-one relationship An entity set

Please give real-life examples for the following situations: An entity set A and an entity set B, with a many-to-one relationship An entity set A and an entity set B, with a one-to-one relationship An entity set A with a many-to-many relationship running from A to itself. 1. 2. 3.

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