What is the weekly rank of the episode with more than 7.14mil viewers, a nightly rank of 5, and a rating/share of 2.9/10?
CREATE TABLE "u_s_nielsen_ratings" (
  "episode" text,
  "rating" real,
  "share" real,
  "rating_share_18_49" text,
  "viewers_millions" real,
  "rank_timeslot" text,
  "rank_night" text,
  "rank_week" text
);
SELECT "rank_week" FROM "u_s_nielsen_ratings" WHERE "viewers_millions">7.14 AND "rank_night"='5' AND "rating_share_18_49"='2.9/10';