Task: Story Composition
Input (English): Premise: It was Sara's birthday. 
 Initial Context: Sara's friends bought her a chocolate creme cake! 
 Original Ending: Nobody knew Sara was allergic to chocolate. Sara ate a slice of the cake. She got very sick and threw up. 
 New ending: Everyone knew Sara was allergic to chocolate. Sara couldn't have a slice of cake. She would have gotten very sick and thrown up. 
Output (English): Sara's friends gave her nothing.