Task: Story Composition
Input (English): Premise: Chris had a headache all morning. 
 Initial Context: He took some medicine but it did not help. 
 Original Ending: He decided to take a nap. Chris napped for three hours. When Chris woke up he felt much better. 
 Counterfactual Context: He took some medicine and it cleared right up.
Output (English): He took a nap to rest a little more. Chris napped for three hours. When Chris woke up he felt much better.