user: Question: What is the total losses for the player with fewer than 51 pens, 3 tries and 45 starts?
Columns: ['Player', 'Span', 'Start', 'Tries', 'Conv', 'Pens', 'Drop', 'Lost', 'Draw']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Nicky Little', '1996–2011', 60.0, 2.0, 117.0, 140.0, 2.0, 34.0, 0.0]
SQL:

assistant: SELECT SUM("Lost") FROM "Table" WHERE "Pens" < 51.0 AND "Tries" = 3.0 AND "Start" = 45.0;