Question: What is Swimmer, when Year is less than 2011, and when Time is "53.06"?
SQL: SELECT "Swimmer" FROM "2-17691430-2" WHERE "Year" < 2011.0 AND "Time" = '53.06';

Question: What is School, when Event is "100 backstroke"?
SQL: SELECT "School" FROM "2-17691430-2" WHERE "Event" = '100 backstroke';

Question: What is School, when Year is less than 2013, and when Event is "100 breaststroke"?
SQL: SELECT "School" FROM "2-17691430-2" WHERE "Year" < 2013.0 AND "Event" = '100 breaststroke';

Question: What is Time, when Year is greater than 2011, and when Event is "800 freestyle relay"?
SQL: SELECT "Time" FROM "2-17691430-2" WHERE "Year" > 2011.0 AND "Event" = '800 freestyle relay';

Question: What is Year, when Time is "1:47.55"?
SQL: SELECT "Year" FROM "2-17691430-2" WHERE "Time" = '1:47.55';