What is the Round of 16 value for the nation with a value of 5 for Ranking Round Rank?
CREATE TABLE "ranking_round" (
  "final_rank" real,
  "ranking_round_rank" real,
  "nation" text,
  "ranking_score" real,
  "round_of_16" text
);
SELECT "round_of_16" FROM "ranking_round" WHERE "ranking_round_rank"=5;