Q1. [8 marks] Draw an EER diagram for the following scenario. Royal Jordanian depends on different types of employees for its daily operation: Royal Jordanian is interested in the following attributes for all of these employees: national number, name - first name, last name, address - city, state, postal code, and telephones. Three employees are of greatest interest: pilots, crew, and engineers. Pilots have date hired attribute and rank, and crews have skills attribute and bonus. Engineers have a relationship with the maintenance center. An engineer must register in at least one maintenance center, which is identified by a location ID and a maintenance center may have many engineers. There are employees other than pilots, crews, and engineers who are of interest to the Royal Jordanian. On the other hand, at a given time an employee must belong to one of these groups