Consider the following relations containing airline flight information: Flights (flno: integer, from: string, to: string, distance: integer, departs: time, arrives: time) Aircraft (aid: integer, aname: string, cruisingrange: integer) Certified (eid: integer, aid: integer) Employees (eid: integer, ename: string, salary: integer) Describe the relations that would be produced by the following TRC or DRC, then write the equivalent TRC or DRC