You will need to write RA queries to retrieve the required information. The relations given in this exercises are: Flights (lightNumber, orginalCity, destinationCin, distance, departTime, arivalTime Aircraft (aircraftld, aircraftName, cruisingRange Certified (pilotld, aircraftld Pilots (pilotld pilotName, salary) 6.) Imagine just for this question) that the Pilots relation has another field called managerld ( gerld Note: again, this imaginary managerld is only added for this question, not applicable to all which is a foreign key pointing to the pilot who is the manager of this current pilot: Pilots pilotld, pilotName, salary, mana other questions. Now, list the Ids of those pilots who are making more money than their managers. 7.) List the Ids of those pilots who are certified for all aircraft