There's a dinosaur on the thirteenth floor. There is a dinosaur on the thirteenth floor. There's a dinosaur on the thirteenth floor There is a dinosaur on the thirteenth floor Theres a dinosaur on the 13th floor There's a dinosaur on the 13th floor There is a dinosaur on the 13th floor. There's a dinosaur on the 13th floor / There is a dinosaur on the 13th floor There's a dinosaur on th 13th floor