CREATE TABLE "heat_1" (
  "rank" real,
  "rowers" text,
  "country" text,
  "time" text,
  "notes" text
);

Question: What country has sa/b as the notes, and a time of 5:51.30?
SQL: SELECT "country" FROM "heat_1" WHERE "notes"='sa/b' AND "time"='5:51.30';

Question: Who were the rowers when notes were sa/b, with a time of 5:51.30?
SQL: SELECT "rowers" FROM "heat_1" WHERE "notes"='sa/b' AND "time"='5:51.30';

Question: What country is ranked larger than 4?
SQL: SELECT "country" FROM "heat_1" WHERE "rank">4;