5. Consider part of the STUDENT database, where the enrollment tables relational schemes are defines as follows Student(id, fname, lname, address_street, address_city) Course (id, name, department) Registration(s_id, cid, quarter) a. List all students that are taking Database class (assume course id ==CSS475 ) a. List students (names) that are taking classes in winter quarter whose last name starts with a or with s.