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: Tim needed help with his homework. Sentence2: He asked his brother John to help him. Sentence3: John told Tim that he couldn't help him right now. Sentence4: John was busy playing video games.

Tim ended up failing his homework.