Task: Story Composition
Input (English): Premise: Sam went into his backyard to dig a hole for a bird bath. 
 Initial Context: He was halfway done with the hole when he hit something. 
 Original Ending: Sam used his hands to dig around the obstruction. He unearthed a wooden chest. He opened the chest and found some old photos and a note. 
 Counterfactual Context: He was halfway done with the hole when he had to stop and go to work.
Output (English): Sam used his hands to dig the next day. He unearthed a wooden chest. He opened the chest and found some old photos and a note.