Task: Text to Code
Input (English): Step 1: find the email_address, phone_number of Staff table.
Step 2: find the email_address, phone_number of Staff table.
Step 3: show the rows that are in the results of step 1 but not in the results of step 2
Output (English): SELECT email_address , phone_number FROM Staff EXCEPT SELECT email_address , phone_number FROM Staff