CREATE TABLE table_name_28 (lane VARCHAR2, nationality VARCHAR2, name VARCHAR2)

How many lanes have a Nationality of united states, and a Name of aaron peirsol?
SELECT COUNT(lane) FROM table_name_28 WHERE nationality = "united states" AND name = "aaron peirsol"
SELECT COUNT("lane") FROM "table_name_28" WHERE "aaron peirsol" = "name" AND "nationality" = "united states"