Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Lester was a good student. Sentence2: One day he forgot to do his homework. Sentence3: He told the teacher he wrote his homework in disappearing ink. Sentence4: The teacher laughed and gave him credit for his homework.

Lester was happy but knew it wouldn't work again.