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Please answer the questions using the following EER diagram: How many (1 or N) employees can participate in one service? Each service is about how

Please answer the questions using the following EER diagram:

How many (1 or N) employees can participate in one service?

Each service is about how many airplanes (1 or N)?

How a specific service is identified (by what keys)?

Explain specialization/generalization relationships (including total/partial, disjoint/overlapping information), if there are any.

Explain union relationships (including total/partial information), if there are any.

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