user: Question: What's Brazil's lane with a time less than 21.15?
Columns: ['Rank', 'Lane', 'Athlete', 'Nationality', 'Time', 'React']
Types: ['real', 'real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 5.0, 'Roman Smirnov', 'Russia', 20.76, 0.166]
SQL:

assistant: SELECT "Lane" FROM "Table" WHERE "Nationality" = 'Brazil' AND "Time" < 21.15;