premise: Tim's history class was first thing in the morning.
initial: He arrived to class very tired.
counterfactual: So he got himself an early night and woke fully refreshed.
original_ending: He started to nod off. When he woke up, class was almost over. Tim failed the final exam.
edited_ending: He paid attention in classWhen class was almost over he had taken lots of notesTime passed the final exam<SEP>He got to the exam early.When he finished his exam, class was almost over.Tim aced the final exam.<SEP>He started to take notes.When he looked up, class was almost over.Tim aced the final exam.