CREATE TABLE table_71947 ("Rank" FLOAT, "Name" TEXT, "Height ft  ( m ) " TEXT, "Floors" FLOAT, "Year" FLOAT)

What is the rank for Omni nashville hotel?
SELECT SUM("Rank") FROM table_71947 WHERE "Name" = 'omni nashville hotel'
SELECT SUM("Rank") FROM "table_71947" WHERE "Name" = 'omni nashville hotel'