In this task you are expected to fix an SQL query based on feedback. You will be given an SQL statement and an English description with what is wrong about that SQL statement. You must correct the SQL statement based off of the feedback. An SQL query works by selecting data from a table where certain conditions apply. A table contains columns where every row in that table must have a value for each column. Every table has a primary key that uniquely identifies each row, usually an id. To choose which columns are returned you specify that after the "SELECT" statement. Next, you use a "FROM" statement to specify what tables you want to select the data from. When you specify a table you can rename it with the "AS" statement. You can reference that table by whatever name follows the "AS" statement. If you want to select data from multiple tables you need to use the "JOIN" statement. This will join the tables together by pairing a row in one table with every row in the other table (Cartesian Product). To limit the number of rows returned you should use the "ON" statement. This will only return rows where the condition specified after the statement is true, this is usually an equals operator with primary keys. You can also use the "WHERE" statement to specify that only rows with column values statisfying a certain condition, should be returned. The "GROUP BY" statement will group rows together that have equal column values for whatever columns follows the statement. The "HAVING" statement will return groups that statisfy whatever condition follows the statement. Any column(s) being returned from grouped rows must either be an aggregate function, (AVG, MAX, COUNT, SUM, ...) of a column, or the column(s) that the data was grouped by. To sort the returned data you can use the "ORDER BY" command which will order the data by whatever aggregate function or column follows the statement. The "DESC" statement will sort in descending order and the "ASC" statement will sort in ascending order. Finally, you can use the "LIMIT" statement to return a certain number of rows. When "*" is used in an SQL statement every column is returned. For example, SELECT * FROM table WHERE attribute = 1, will select every column from rows with the attribute column equal to 1. 

Example Input: SQL: SELECT T2.i_ID FROM instructor AS T1 JOIN advisor AS T2 ON T1.ID = T2.i_ID WHERE T1.dept_name = "History"
Feedback: Find instructor's id for student whose department name equals History , make sure instructor is an advisor .
Example Output: SELECT i_id FROM advisor AS T1 JOIN student AS T2 ON T1.s_id  =  T2.id WHERE T2.dept_name  =  'History'

Example Input: SQL: SELECT f_id FROM song WHERE song_name = "mp3"
Feedback: Use country from files table alternatively to file size .
Example Output: SELECT f_id FROM files WHERE formats  =  "mp3"

Example Input: SQL: SELECT Count ( * ) FROM Ref_Characteristic_Types AS T1 JOIN Characteristics AS T2 ON T1.characteristic_type_code = T2.characteristic_type_code WHERE T2.characteristic_name = "white" OR T1.characteristic_type_description = "hot"
Feedback: Add characteristics in step 1 , exchange reference characteristic types table with products table , characteristic name with color description , characteristic type description with characteristic name .
Example Output:
SELECT count(*) FROM products AS t1 JOIN product_characteristics AS t2 ON t1.product_id  =  t2.product_id JOIN CHARACTERISTICS AS t3 ON t2.characteristic_id  =  t3.characteristic_id JOIN ref_colors AS t4 ON t1.color_code  =  t4.color_code WHERE t4.color_description  =  "white" OR t3.characteristic_name  =  "hot"