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_959 ( "Season" text, "Regionalliga S\u00fcd" text, "Regionalliga West/S\u00fcdwest" text, "Regionalliga Nord" text, "Regionalliga Nord-Ost" text )

### Question ###
what's the season with regionalliga west/s dwest being arminia bielefeld

### Accurate SQL ###

SELECT "Season" FROM table_959 WHERE "Regionalliga West/S\u00fcdwest" = 'Arminia Bielefeld'