What is the average react of athlete muna lee, who is ranked greater than 3?
CREATE TABLE "semifinal_1" (
  "rank" real,
  "lane" real,
  "athlete" text,
  "country" text,
  "time" real,
  "react" real
);
SELECT AVG("react") FROM "semifinal_1" WHERE "athlete"='muna lee' AND "rank">3;