Task: Text to Code
Input (English): SQL: SELECT T1.Name , Sum ( T2.Sales ) FROM singer AS T1 JOIN song AS T2 ON T1.Singer_ID = T2.Singer_ID GROUP BY T2.Singer_ID
Feedback: Display name of singer.
Output (English): SELECT T1.Name ,  sum(T2.Sales) FROM singer AS T1 JOIN song AS T2 ON T1.Singer_ID  =  T2.Singer_ID GROUP BY T1.Name