user: Question: How many people attended the game that lost 2-4 and the date was higher than 15?
Columns: ['Date', 'Opponent', 'Venue', 'Result', 'Attendance', 'Competition']
Types: ['real', 'text', 'text', 'text', 'real', 'text']
Sample row: [8.0, 'Romford Raiders', 'Home', 'Won 9-2', 1319.0, 'League']
SQL:

assistant: SELECT SUM("Attendance") FROM "Table" WHERE "Result" = 'lost 2-4' AND "Date" > 15.0;