user: Question: What is the total of tries for a player with conv smaller than 45, 19 starts and pens fewer than 22?
Columns: ['Player', 'Span', 'Start', 'Tries', 'Conv', 'Pens', 'Drop']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Mike Hercus', '2002-2009', 45.0, 9.0, 90.0, 76.0, 4.0]
SQL:

assistant: SELECT SUM("Tries") FROM "Table" WHERE "Conv" < 45.0 AND "Start" = 19.0 AND "Pens" < 22.0;