Write a relational algebra expression for each of the following operations:

e) Find the IDs of all the students who are enrolled in COMP 314 but not COMP 414.

f) Find all names of students with student IDs in the range [A, B].

Consider a student database with the following schema: Students (SID, sName); Courses (cID, Name); Enrolled (sID, ID, sectID, grade) where foreign key (SID) references Students, foreign key (CID) references Courses