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: A boy saw a quarter lying on the sidewalk. Sentence2: He bent down and picked it up. Sentence3: As he did so, a spitball flew where his head had been. Sentence4: Looking around, he saw his archenemy holding a straw.

The boy was angry.