user: Question: Name the minimum kerry # for bush % for 50.9%
Columns: ['County', 'Kerry%', 'Kerry#', 'Bush%', 'Bush#', 'Others%', 'Others#']
Types: ['text', 'text', 'real', 'text', 'real', 'text', 'real']
Sample row: ['Arkansas', '44.8%', 3110.0, '54.5%', 3789.0, '0.7%', 47.0]
SQL:

assistant: SELECT MIN("Kerry#") FROM "Table" WHERE "Bush%" = '50.9%';