CREATE TABLE table_50850 ("Ride" TEXT, "Year Opened" FLOAT, "Ride Manufacturer and Type" TEXT, "Minimum Height" TEXT, "Rating" FLOAT)

What is the ride manufacturer and type with a minimum height of 54', after the year 1991?
SELECT "Ride Manufacturer and Type" FROM table_50850 WHERE "Minimum Height" = '54' AND "Year Opened" > '1991'
SELECT "Ride Manufacturer and Type" FROM "table_50850" WHERE "Minimum Height" = '54' AND "Year Opened" > '1991'