Problem $1$: The FlyRight Aircraft Maintenance $($FRAM$)$ division of the FlyRight Company $($FRC$)$ performs all maintenance for FRC$$s aircraft. Produce a data model segment that reflects the following business rules: All mechanics are FRC employees. Not all employees are mechanics. Some mechanics are specialized in engine $($EN$)$ maintenance. Some mechanics are specialized in airframe $($AF$)$ maintenance. Some mechanics are specialized in avionics $($AV$)$ maintenance. $($Avionics are the electronic components of an aircraft that are used in communication and navigation.$)$ All mechanics take periodic refresher courses to stay current in their areas of expertise. FRC tracks all courses taken by each mechanic$$date$,$ course type, certification $($Y$/$N$),$ and performance. FRC keeps a history of the employment of all mechanics. The history includes the date hired, date promoted, date terminated, and so on$.($Note: The $$and so on$$ component is$,$ of course, not a real$-$world requirement. Instead, it has been used here to limit the number of attributes you will show in your design.$)$ Given those requirements, create the Crow$$s Foot ERD segment.