A company has 20 supervisors and 20 projects. At least one supervisor is responsible for the supervision of each project, and more than 3 employees are involved. Each employee can participate in a maximum of 3 projects and at least one project. Each supervisor manages at least one project and a maximum of 2projects. identify the main entity types for the company. identify the main relationship types and specify the multiplicity for each relationship. State any assumptions you make about the data. Draw an ER/EER diagram to represent the data requirements for the company.