user: Question: What is the most number of losses for teams with 5 wins and an against value under 1607?
Columns: ['NTFA Div 1', 'Wins', 'Byes', 'Losses', 'Draws', 'Against']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Bridgenorth', 15.0, 0.0, 3.0, 0.0, 1247.0]
SQL:

assistant: SELECT MAX("Losses") FROM "Table" WHERE "Wins" = 5.0 AND "Against" < 1607.0;