Task: Story Composition
Input (English): Premise: Dan went spelunking into a cave with some friends. 
 Initial Context: The cave lead into a series of tunnels, and some were very large. 
 Original Ending: One of the caves produced a very funny and deep echo. The group sent a few minutes playing with this before leaving. Upon getting out of the cave, Dan told everyone he had a great time. 
 Counterfactual Context: The cave started to creak and small pieces began to fall.
Output (English): It produced a very eerie and deep echo. The group stood there in shock for a few seconds before running out. Upon getting out of the cave, Dan told everyone he had been terrified.