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

Question: What time does Belgium have?
SQL: SELECT "time" FROM "semifinal_a_b_1" WHERE "country"='belgium';

Question: Rank 6 has what notes?
SQL: SELECT "notes" FROM "semifinal_a_b_1" WHERE "rank"=6;

Question: Who has less than 5 rank and notes of fb?
SQL: SELECT "athlete" FROM "semifinal_a_b_1" WHERE "notes"='fb' AND "rank"<5;

Question: Rank of 6 has what time?
SQL: SELECT "time" FROM "semifinal_a_b_1" WHERE "rank"=6;