CREATE TABLE "semifinal_a_b_1" (
  "rank" real,
  "rowers" text,
  "country" text,
  "time" text,
  "notes" text
);

Question: What are the notes for 6:31.16?
SQL: SELECT "notes" FROM "semifinal_a_b_1" WHERE "time"='6:31.16';

Question: What rowers have a 6:29.56 time?
SQL: SELECT "rowers" FROM "semifinal_a_b_1" WHERE "time"='6:29.56';

Question: What is the time with FB notes for Canada?
SQL: SELECT "time" FROM "semifinal_a_b_1" WHERE "notes"='fb' AND "country"='canada';

Question: What country has a time of 6:49.28?
SQL: SELECT "country" FROM "semifinal_a_b_1" WHERE "time"='6:49.28';