query: SELECT course_id FROM course EXCEPT SELECT course_id FROM prereq
question: Are Finding the imight would of the courses that do ain't no prerequisite?
query_toks: SELECT course_id FROM course EXCEPT SELECT course_id FROM prereq
query_toks_no_value: select course_id from course except select course_id from prereq
question_toks: Are Finding the imight would of the courses that do ain't no prerequisite?