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: Chad is going to be attending his friend's wedding tomorrow. Sentence2: Chad decided he would surprise his friend with a song tribute. Sentence3: Chad picked out what he thought was the perfect song. Sentence4: Chad then began to practice his song long into the night.

While Chad is nervous, he was excited to surprise his friend.