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A performance venue hosts many concert series a year. Performers have a name and perform several times in a concert series (each constitut-ing a performance with a different date). Con-cert series have one or more performers and have a name and a specified seating arrange-ment. A concert series is held in one (and only one) of several concert halls, each of which has a room number. Represent this situation of con-certs and performers with an E-R diagram.

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