Task: Story Composition
Input (English): Premise: Bill's house was dirty. 
 Initial Context: HIs mother said he had to clean it. 
 Original Ending: She offered him a reward. Bill cleaned the house and wondered what the reward was. When he was done his mother gave him a high five. 
 New ending: He offered him a reward. Bill cleaned the house and wondered what the reward was. When he was done his father gave him a high five. 
Output (English): His father said he had to clean it.