user: ### NOW ANSWER:
Question: What is the highest rank of a swimmer in lane 5?
Columns: ['Rank', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 4.0, 'Domenico Fioravanti', 'Italy', '1:00.84']
SQL:

assistant: SELECT MAX("Rank") FROM "Table" WHERE "Lane" = 5.0;