Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. 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 and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.

Let me give you an example: Premise: Susie was sitting on her barstool. 
 Initial Context: She kept kicking the counter with her feet. 
 Original Ending: Suddenly, her kick sent her falling backwards. The chair hit the ground with a thud and broke. Susie hurt her head and was really scared. 
 Counterfactual Context: She kept herself steady with her feet.
The answer to this example can be: Suddenly, an earthquake sent her falling backwards. The chair hit the ground with a thud and broke. Susie hurt her head and was really scared.
Here is why: The generated new ending is perfect. It considers the counterfactual context and changes required parts in original ending.

OK. solve this:
Premise: Ned had not prepared for the test in math. 
 Initial Context: He was sure he would fail the test and have to take summer school. 
 Original Ending: He tried to cram during lunch so that he would understand some of it. When he got to class a stranger came in and stood up front. She said his teacher was out sick so the test was canceled! 
 Counterfactual Context: He stole the test from the teacher's office.
Answer:
He tried to memorize it during lunch so that he could remember the answers. When he got to class a stranger came in and stood up front. She said his teacher was out sick so the test was canceled! 