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 band called Tomorrow's Sunrise was practicing for a gig. Sentence2: They just couldn't get the harmonies right in one of their songs. Sentence3: No matter what they did, it just sounded wrong. Sentence4: They checked the equipment and nothing was amiss.

It turned out that one of the vocalists was hiding laryngitis.