Question: Which Nationality has a Lane of 5, and a Time of 7:08.04?
SQL: SELECT "Nationality" FROM "2-18454179-3" WHERE "Lane" = 5.0 AND "Time" = '7:08.04';

Question: Which Heat has a Rank of 8?
SQL: SELECT MAX("Heat") FROM "2-18454179-3" WHERE "Rank" = 8.0;