CREATE TABLE "repechage_2" (
  "rank" real,
  "rowers" text,
  "country" text,
  "time" text,
  "notes" text
);

Question: What country is ranked smaller than 2?
SQL: SELECT "country" FROM "repechage_2" WHERE "rank"<2;

Question: What is the rank when the time is 6:50.48?
SQL: SELECT "rank" FROM "repechage_2" WHERE "time"='6:50.48';

Question: What is the highest rank with the notes of sa/b, and a time of 6:39.07?
SQL: SELECT MAX("rank") FROM "repechage_2" WHERE "notes"='sa/b' AND "time"='6:39.07';

Question: What shows for notes when rank is more than 4, and country is South Korea?
SQL: SELECT "notes" FROM "repechage_2" WHERE "rank">4 AND "country"='south korea';