Question: What's the nationality of Henry Carr having a time of 20.3y?
SQL: SELECT "Nationality" FROM "2-18982988-1" WHERE "Athlete" = 'Henry Carr' AND "Time" = '20.3y';

Question: What's the nationality of Livio Berruti?
SQL: SELECT "Nationality" FROM "2-18982988-1" WHERE "Athlete" = 'Livio Berruti';

Question: What's the nationality of Ray Norton with a time of 20.6?
SQL: SELECT "Nationality" FROM "2-18982988-1" WHERE "Time" = '20.6' AND "Athlete" = 'Ray Norton';