CREATE TABLE table_5470 ("Rank" FLOAT, "Name" TEXT, "Street Address" TEXT, "Height feet / m" TEXT, "Floors" FLOAT, "Year" FLOAT)

What is the building's name that is 617 / 188 in height and ranked less than 6?
SELECT "Name" FROM table_5470 WHERE "Rank" < '6' AND "Height feet / m" = '617 / 188'
SELECT "Name" FROM "table_5470" WHERE "Height feet / m" = '617 / 188' AND "Rank" < '6'