user: Question: What was the lowest fumble with an average of less than 5.7 and 236 yards?
Columns: ['Player', 'Att.', 'Yards', 'Avg.', 'Fumbles']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Stefan Logan', 122.0, 889.0, 7.3, 4.0]
SQL:

assistant: SELECT MIN("Fumbles") FROM "Table" WHERE "Avg." < 5.7 AND "Yards" = 236.0;