Task: Story Composition
Input (English): Premise: Anthony was riding on his skateboard. 
 Initial Context: He decided to speed up when moving near a flight of stairs. 
 Original Ending: However, he tripped on a side rail and fell on his face. I ran to him to find out what happened. He couldn't get up for a few minutes. 
 New ending: However, he tripped over a pothole and fell on his face. I ran to him to find out what happened. He couldn't get up for a few minutes. 
Output (English): He didn't bring his helmet so he wasn't doing any tricks today.