user: Question: Who was RL Süd (1st) when FK Pirmasens was RL Südwest (1st)?
Columns: ['Season', 'RL Süd (1st)', 'RL Süd (2nd)', 'RL Südwest (1st)', 'RL Südwest (2nd)']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1963–64', 'Hessen Kassel', 'FC Bayern Munich', 'Borussia Neunkirchen', 'FK Pirmasens']
SQL:

assistant: SELECT "RL Süd (1st)" FROM "Table" WHERE "RL Südwest (1st)" = 'FK Pirmasens';