Task: Story Composition
Input (English): Premise: Bill was sick for three days in a row. 
 Initial Context: He wasn't able to attend classes. 
 Original Ending: He missed an important exam. When he returned to school the instructor allowed him to catch up. Bill was very grateful to the instructor. 
 Counterfactual Context: He attended all of his classes.
Output (English): He didn't want to miss an important exam. When he returned to school the instructor gave him another week to catch up since he was sick. Bill was very grateful to the instructor.