Definition: In this task, you're given four sentences of a story written in natural language in which one part is missing. Your job is to predict the position and missing part of the story and return in the following format: position, missing part. The missing part is a sentence that completes the story, and the position is the number of the missing sentence in the new story.
Input: Sentence1: Joy's pastor asks her to sing at church. Sentence2: Joy practiced for weeks. Sentence3: Joy is very nervous about singing. Sentence4: When the time comes for her to sing, Joy faints.
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
4, Tonight is the big night.