query: SELECT title FROM course WHERE dept_name  =  'Statistics' EXCEPT SELECT title FROM course WHERE dept_name  =  'Psychology'
question: Of course Find a title which what is provided it by Statistics but not Psychologys department.
query_toks: SELECT title FROM course WHERE dept_name = 'Statistics ' EXCEPT SELECT title FROM course WHERE dept_name = 'Psychology '
query_toks_no_value: select title from course where dept_name = value except select title from course where dept_name = value
question_toks: Of course Find a title which what is provided it by Statistics but not Psychologys department.