2.1 Please interpret the ERD as below. You need to interpret the entities and attributes) and the meaning of the relationship, including the participation (6 points). (Note: cannot just state 1:M or M:N, mandatory or optional) 2.2 Mapping the ERD into a relational schema (table structures) (5 points). 2.3 Show several records (make up by yourself) in each relation (table), and write sentence(s) to indicate the participation (5 points). Employeeld Employee Name DegreeCode DegreeName Employee Have Degree