Task: Story Composition
Input (English): Premise: I started my day thinking I'd go grocery shopping. 
 Initial Context: When I started my car, I realized that the car was stirring badly. 
 Original Ending: I stepped outside and saw that I had a flat tire. I took out the spare tire and replaced the old one. Twenty minutes later, I finally left to go grocery shopping. 
 New ending: I stepped outside and confirmed that I had a flat tire. I took out the spare tire and replaced the old one. Twenty minutes later, I finally left to go grocery shopping. 
Output (English): When I started my car, I realized that the car had a flat tire.