Task: Story Composition
Input (English): Premise: A young woman wearing a dark dress bumped into a stranger. 
 Initial Context: She hadn't realized it, but she dropped her purse in the collision. 
 Original Ending: The stranger picked it up and left it with a police officer. Later, the woman called the police reporting her purse stolen. They told her about the man turning it in and she retrieved it. 
 Counterfactual Context: She apologized and kept on walking.
Output (English): She didn't notice that she had dropped her purse in the collision.. Later, the woman called the police reporting her purse stolen. They told her about the man turning it in and she retrieved it.