query: SELECT employee_name FROM Employees EXCEPT SELECT Employees.employee_name FROM Employees JOIN Circulation_History ON Circulation_History.employee_id = Employees.employee_id
question: List the employees at not showed up in circulation no history of documents. List the employee's name.
query_toks: SELECT employee_name FROM Employees EXCEPT SELECT Employees.employee_name FROM Employees JOIN Circulation_History ON Circulation_History.employee_id = Employees.employee_id
query_toks_no_value: select employee_name from employees except select employees.employee_name from employees join circulation_history on circulation_history.employee_id = employees.employee_id
question_toks: List the employees at not showed up in circulation no history of documents. List the employee's name.