Task: Text to Code
Input (English): SQL: SELECT Count ( * ) FROM Tourist_Attractions AS T1 WHERE T1.Tourist_Attraction_ID NOT IN ( SELECT T2.Tourist_Attraction_ID FROM Visits AS T2 )
Feedback: In step 1 and 2 exchange tourist attraction id with tourist id , now in step 2 need to replace tourist attractions with visitors .
Output (English): SELECT count(*) FROM Visitors WHERE Tourist_ID NOT IN ( SELECT Tourist_ID FROM Visits )