user: Question: what's the winner with purse( $ ) value of bigger than 964017.2297960471 and date value of May 28
Columns: ['Date', 'Tournament', 'Location', 'Purse( $ )', 'Winner', 'Score', '1st Prize( $ )']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'real']
Sample row: ['Jan 15', 'Senior Tournament of Champions', 'Puerto Rico', 750000.0, 'Jim Colbert (10)', '209 (-7)', 148000.0]
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Purse( $ )" > 964017.2297960471 AND "Date" = 'May 28';