What is the lowest lane in the Czech Republic and a time larger than 21.05?
CREATE TABLE "heat_1" (
  "rank" real,
  "lane" real,
  "athlete" text,
  "nationality" text,
  "time" real,
  "react" real
);
SELECT MIN("lane") FROM "heat_1" WHERE "nationality"='czech republic' AND "time">21.05;