Complex sentence: To date, there are only three examples of this type of element is Hollywood Rip Ride Rockit at Universal Studios Florida, "Shock" at "Rainbow MagicLand", and at Six Flags Discovery Kingdom.
Split into simpler sentences: To date, there are only three examples of this type of element on a ride. These are Hollywood Rip Ride Rockit at Universal Studios Florida, "Shock" at "Rainbow MagicLand", and at Six Flags Discovery Kingdom.