Task: Story Composition
Input (English): Premise: Jon kept a loaded gun in his house for protection. 
 Initial Context: He hid it in his bedroom. 
 Original Ending: One day, his two sons found the gun. They decided to play with it. One son accidentally shot the other son. 
 New ending: One day, his two sons found the key and got the gun. They decided to play with it. One son accidentally shot the other son. 
Output (English): He kept it locked in the bedroom.