Task: Story Composition
Input (English): Premise: Tom liked to download things on the computer. 
 Initial Context: He often did this without checking the safety of the website. 
 Original Ending: One day, his computer stopped working. He took it to a technician, who said it had a virus. Tom suddenly wished he had been more careful downloading files. 
 Counterfactual Context: He always ran the latest antivirus software and was careful about what he downloaded.
Output (English): One day, his computer stopped working. He took it to a technician, who said it had a virus. Tom suddenly realized he hadn't been careful enough downloading files.