user: Question: What is the average first prize of the tournament with a score of 279 (–9)?
Columns: ['Date', 'Tournament', 'Location', 'Winner', 'Score', '1st prize ( $ )']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['Jan 9', 'Mercedes Championships', 'California', 'Phil Mickelson (4)', '276 (–12)', 180000.0]
SQL:

assistant: SELECT AVG("1st prize ( $ )") FROM "Table" WHERE "Score" = '279 (–9)';