query: SELECT employee_id FROM Employees EXCEPT SELECT Destruction_Authorised_by_Employee_ID FROM Documents_to_be_destroyed
question: Employees one not authorizing no destruction any document? Giving us them belong employee ids.
query_toks: SELECT employee_id FROM Employees EXCEPT SELECT Destruction_Authorised_by_Employee_ID FROM Documents_to_be_destroyed
query_toks_no_value: select employee_id from employees except select destruction_authorised_by_employee_id from documents_to_be_destroyed
question_toks: Employees one not authorizing no destruction any document? Giving us them belong employee ids.