10. You are tasked with developing an employee application. In the design phase, you are asked to create a hierarchical diagram of the employee structure. Then the diagram can later be turned into classes. You are given the following information: Our company has a set of employees. These employees can be managers, front-end and back-end. Managers can be a store manager, an assistant store manager or a shift manager. Front-end employees can be Cashiers or baggers. Back-end employees can either be a custodian, a utility- clerk or a stocker 1. Given the above description, what would be the abstract class or abstract classes? 2. Given the above description, create the correct hierarchy of classes using inheritance in class diagram form. Class names surrounded by boxes is sufficient. Make sure to mark abstract classes if you have them 3. Take your class diagram and turn it into a set of classes that represent the diagram. These classes can be left empty. But they should have the correct names and the correct parents