TASK DEFINITION: Given a premise, an initial context, an original ending, and a new ending, the task is to generate the counterfactual context that is aligned with the new ending. Each instance consists of a five-sentence story. The premise is the first sentence of a story, and the second sentence, which is the initial context, provides more information about the story's context. The original ending is the last three sentences of the story. Also, you are given a new ending that can provide the new story with the same premise. You should write a counterfactual context to explain the small differences between the original and new endings. More specifically, a story context contains the general plot of the story. And a counterfactual context is a slight modification to the initial context. To sum up, you should write the second sentence of a story based on the premise(first sentence) and the new ending(last three sentences) of the story.
PROBLEM: Premise: Adam was having a great night out.
Initial Context: He went to dinner and later a movie.
Original Ending: He proceeded to ready his wallet to pay. He touched his back pocket again and again. It wasn't there he had lost his wallet!
New ending: He proceeded to get popcorn from the kitchen. He checked his pantry again and again. It wasn't there he had forgotten the popcorn!

SOLUTION: He stayed at home and watched a movie.

PROBLEM: Premise: It was always so cold and dark down there.
Initial Context: Billy was too scared.
Original Ending: One day he built up his courage and went down into the basement. There wasn't much down there at all. Billy learned that having courage is important.
New ending: One day he yawned and forced himself to go down into the basement. There wasn't much down there at all. Billy learned that being lazy didn't really matter this time.

SOLUTION: Billy wasn't scared of it, just lazy.

PROBLEM: Premise: Clark wanted to learn how to fish but his dad was very busy.
Initial Context: Clark saved his money and bought a fishing pole.
Original Ending: Every day Clark went fishing by himself. One day, Clark saw a person sitting at his normal fishing spot. He walked over to see his dad waiting for him so they could fish.
New ending: Every day Clark went carving wood by himself. One day, Clark saw a person sitting at his normal spot. He walked over to see his dad waiting for him so they could carve wood.

SOLUTION:
Clark decided to take up a different hobby.