Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_68 (released VARCHAR, series_sorted VARCHAR)

### Question ###
what is the released when the series is sorted 6y/ai?

### Accurate SQL ###

SELECT released FROM table_name_68 WHERE series_sorted = "6y/ai"