The document lists various pet prices and makes comparisons between their costs, stating that parrots are more expensive than iguanas, iguanas are not more expensive than parrots, and cats are more expensive than dogs, while frogs are cheaper than snakes.

1. Pet shop $ 50 $ 25 $ 60 $ 40 $ 40 Parrots are expensive iguanas. Iguanas are not expensive parrots. Cats are expensive dogs. $ 20 Frogs are than snakes.