query: SELECT StuID FROM Student EXCEPT SELECT StuID FROM Participates_in
question: Are Showing id student isn't participating any activitys.
query_toks: SELECT StuID FROM Student EXCEPT SELECT StuID FROM Participates_in
query_toks_no_value: select stuid from student except select stuid from participates_in
question_toks: Are Showing id student isn't participating any activitys.