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: Jack stared at the computer screen. Sentence2: He needed a hit. Sentence3: He ran through all of his search tools once more. Sentence4: No hits were found.

Jack stared at the screen and sighed.