Task: Story Composition
Input (English): Premise: Tom wanted to quit drinking. 
 Initial Context: All his friends drank often. 
 Original Ending: Tom knew he couldn't hang out with them anymore. He slowly stopped going out with them. It greatly helped him stop. 
 New ending: Tom knew he couldn't hang out with him anymore. He slowly stopped going out with him. It greatly helped Tom stop. 
Output (English): His best friend drank often.