Question #5 Transfer the following verbal description into a unified ER model: a) A company produces articles (Mat-#), which are classified in consumables (wear parts) and systems (Ser-#). b) Customers (Cust-#) can buy maintenance contracts for these systems. c) If a defective system is sent in by the customer to be repaired, a repair order (Rord-#) is created, and TI m

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