Input (grade 13): The first two WrestleManias were financial successes, and after WrestleMania III became a popular event in wrestling history, the WWF then decided to expand their pay-per-view offerings.
Output (grade 6): The first two WrestleManias earned much money. After WrestleMania III became one of the best event in wrestling history, the WWF then decided to have more pay-per-views.