A survey of 1,172 tourists visiting Orlando was taken. Of those surveyed: 265 tourists had visited the Magic Kingdom
298 tourists had visited LEGOLAND
94 tourists had visited both the Magic Kingdom and LEGOLAND
52 tourists had visited both the Magic Kingdom and Universal Studios
55 tourists had visited both LEGOLAND and Universal Studios
19 tourists had visited all three theme parks
99 tourists did not visit any of these theme parks
How many tourists only visited the Universal Studios (of these three)?