Question: How many lanes does australia have with a reaction smaller than 0.138?
SQL: SELECT COUNT("Lane") FROM "2-18578883-4" WHERE "Nationality" = 'australia' AND "Reaction" < 0.138;

Question: Who had a reaction larger than 0.17400000000000002 and a lane larger than 6?
SQL: SELECT "Name" FROM "2-18578883-4" WHERE "Reaction" > 0.17400000000000002 AND "Lane" > 6.0;