Task: Story Composition
Input (English): Premise: A man blustered up to a store employee, clearly upset. 
 Initial Context: He wanted to return dog treats he had bought the week before. 
 Original Ending: He wanted to know why a store would dare to sell him steer pizzle. Apparently steer pizzle was somehow inappropriate for his dog to eat. The dog never got to eat his treats, a sad day indeed for the dog. 
 New ending: He wanted to know why a store would dare to sell him tainted food. Apparently the store, not the manufacturer, was somehow responsible for the bad food. The dog never got better, a sad day indeed for the man and dog alike. 
Output (English): He bought some natural food that was tainted and wanted the store to pay for his dog's vet bills.