user: Question: What is the amount of the 1st prize when the Winner was Ken Green (4)?
Columns: ['Date', 'Tournament', 'Location', 'Winner', 'Score', '1st prize ( $ )']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['Jan 17', 'MONY Tournament of Champions', 'California', 'Steve Pate (2)', '202 (–14)', 90000.0]
SQL:

assistant: SELECT "1st prize ( $ )" FROM "Table" WHERE "Winner" = 'Ken Green (4)';