Draw a complete EERD for the following situation.
Assume an entity named EMPLOYEE. The entity employee has some attributes - empID, Name, Birth Date, Age. There are different type of employees including Accountants, Mechanics, and Pilots. An accountant has a CPA(Certified Public Accountant) qualification that no other employee type has. A pilot has a flying qualification and a pilot license that no other employee has. A mechanic has a qualification of aircraft engineering that no other employee has.