Task: Text to Code
Input (English): SQL: SELECT T3.last_name FROM Addresses AS T1 JOIN Staff AS T2 ON T2.staff_address_id = T1.address_id JOIN Customers AS T3 ON T1.address_id = T3.customer_address_id WHERE T2.last_name = "Sawayn" INTERSECT SELECT T3.last_name FROM Addresses AS T1 JOIN Staff AS T2 ON T2.staff_address_id = T1.address_id JOIN Customers AS T3 ON T1.address_id = T3.customer_address_id WHERE T2.last_name = "Sawayn"
Feedback: In step 2 only find Customer's last name , in step 3 only find Staff's last name .
Output (English): SELECT last_name FROM Customers INTERSECT SELECT last_name FROM Staff