user: Question: What was the minimum score for r2?
Columns: ['Player', 'Country', 'Year(s) won', 'R1', 'R2', 'R3', 'R4', 'Total', 'To par', 'Finish']
Types: ['text', 'text', 'text', 'real', 'real', 'real', 'real', 'real', 'text', 'text']
Sample row: ['Phil Mickelson', 'United States', '2004 , 2006', 73.0, 68.0, 71.0, 67.0, 279.0, '–9', '5']
SQL:

assistant: SELECT MIN("R2") FROM "Table";