Task: Story Composition
Input (English): Premise: Tom was a powerful boxer. 
 Initial Context: Unfortunately his cardio wasn't too good. 
 Original Ending: He tried to train in higher elevations. It improved his cardio a bit. Not enough to make him good, though. 
 New ending: He tried to train in higher elevations to punch. It improved his punching a bit. Not enough to make him good, though. 
Output (English): But he was clumsy and rarely landed a punch.