premise: Tom is in class.
initial: It just started and he's already bored.
counterfactual: He loves the class and is always enthralled.
original_ending: He can't pay any attention in class. He dozed off. Tom might fail the class.
edited_ending: But today, he can't pay any attention in class.He dozed off.Tom might want to wake up.<SEP>He pays attention in class.He never dozed off.Tom might pass the class.<SEP>He always pay attention to his every lesson.He got high grades.Tom might be in the top list of his class.