A car dealer shop decides to store all information about the cars and the technicians by using a relational DBMS. Your task is to design an ER model to organize such information. The relevant information is as follows:

• Each car is identified by a registration number. It has the year made, color, number of doors, and a window price.

• Each model is identified by a number. In addition, its capacity, horse power, and mile per gallon need to be recorded.

• Each car belongs to one and only one model.

• A number of technicians are identified by their employee ID. Also, their name, ssn, and salary need to be stored.

• Each technician is certified for one or more model(s).