user: Question: How many lanes have a Nationality of united states, and a Name of aaron peirsol?
Columns: ['Heat', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [6.0, 4.0, 'Lenny Krayzelburg', 'United States', '1:58.40']
SQL:

assistant: SELECT COUNT("Lane") FROM "Table" WHERE "Nationality" = 'united states' AND "Name" = 'aaron peirsol';