query: SELECT StuID FROM Student WHERE sex  =  'M' EXCEPT SELECT StuID FROM Sportsinfo WHERE sportname  =  "Football"
question: What id all male student who is not playing football?
query_toks: SELECT StuID FROM Student WHERE sex = 'M ' EXCEPT SELECT StuID FROM Sportsinfo WHERE sportname = `` Football ''
query_toks_no_value: select stuid from student where sex = value except select stuid from sportsinfo where sportname = value
question_toks: What id all male student who is not playing football?