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_19412902_1 ( play_off VARCHAR, group_stage VARCHAR, clubs VARCHAR )

### Question ###
what is the play-off in group stage 4 and clubs is 12

### Accurate SQL ###

SELECT play_off FROM table_19412902_1 WHERE group_stage = 4 AND clubs = 12