user: Question: The swimmer from the united states in a lane less than 5, had what as the average time?
Columns: ['Rank', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'text', 'text', 'real']
Sample row: [1.0, 5.0, 'Dara Torres', 'United States', 24.27]
SQL:

assistant: SELECT AVG("Time") FROM "Table" WHERE "Nationality" = 'united states' AND "Lane" < 5.0;