Task: Story Composition
Input (English): Premise: Billy went to the mall with his family. 
 Initial Context: He ran off to the toy store. 
 Original Ending: He got lost along the way. A cop found him and spoke over the PA system. Eventually Billy's parents found him. 
 New ending: They got lost in the mall. A cop found them and spoke over the PA system. Eventually Billy's parents found them. 
Output (English): He followed his sister everywhere she went.