EXERCISE #2: E-R DESIGN - Design a database for a school, with information about students, professors, and other staff. Each person is describedd by standard personal data. The database has to track of the academic history of students, archiving the classes attended and the final grades earned for each student for every year and ect. Professors can bef described by the courses s/he can teach. The database has to manage information about the rooms: there are lecture rooms (associated with classes), labs (associated with subjects), and offices (generically associated with employees) Two species cannot have the same official name, even if the same name can be given to multiple specie:s The E-R schema must include cardinalities for relationships, and attributes (where applicable), and identifiers