user: Question: How much Snatch has a Total (kg) smaller than 257?
Columns: ['Name', 'Bodyweight', 'Snatch', 'Clean & Jerk', 'Total (kg)']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Iván Cambar ( CUB )', 76.65, 156.0, 194.0, 350.0]
SQL:

assistant: SELECT SUM("Snatch") FROM "Table" WHERE "Total (kg)" < 257.0;