user: Question: What is the total number for long when there are 19 attempts?
Columns: ['Player', 'Attempts', 'Yards', 'Average', 'Long', 'Touchdowns']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Stephen Davis', 332.0, 1318.0, 4.0, 50.0, 11.0]
SQL:

assistant: SELECT SUM("Long") FROM "Table" WHERE "Attempts" = 19.0;