Task: Story Composition
Input (English): Premise: Tom was out on a hike. 
 Initial Context: His phone ran out of battery. 
 Original Ending: He liked listening to music. Tom decided to buy a back up battery. Tom took it next time he was hiking. 
 New ending: He liked listening to music but was wary of his battery life. Tom decided to buy a back up battery. Tom took it next time he was hiking. 
Output (English): His phone had never run out of battery.