Task: Story Composition
Input (English): Premise: Ian was at his friend's house. 
 Initial Context: But it was time for him to go. 
 Original Ending: He thought his parents would pick him up in a few minutes. But hours went by. Ian had to walk home in the dark. 
 Counterfactual Context: But it was time for him to walk home.
Output (English): He thought his parents would call him up in a few minutes. But hours went by. Ian hated walking home in the dark.