Question: What did ku hyo-jin rank?
SQL: SELECT COUNT("Rank") FROM "2-12382876-4" WHERE "Name" = 'ku hyo-jin';

Question: What was the rank of the person who swam in Lane 7 with a time of 2:25.86?
SQL: SELECT SUM("Rank") FROM "2-12382876-4" WHERE "Time" = '2:25.86' AND "Lane" < 7.0;