CREATE TABLE table_57971 ("Episode" FLOAT, "Rating" FLOAT, "Share" FLOAT, "Rating/share  ( 18-49 ) " TEXT, "Rank  ( Timeslot ) " FLOAT, "Rank  ( Night ) " FLOAT)

What is the smallest rating with nightly rank smaller than 7, timeslot rank smaller than 5 and eposide after episode 6?
SELECT MIN("Rating") FROM table_57971 WHERE "Rank (Night)" < '7' AND "Rank (Timeslot)" < '5' AND "Episode" > '6'
SELECT MIN("Rating") FROM "table_57971" WHERE "Episode" > '6' AND "Rank (Night)" < '7' AND "Rank (Timeslot)" < '5'