Given the task definition and input, reply with output. 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.

Sentence1: The school bell rang when the clock struck 2. Sentence2: Gina was never more happy for a day to end. Sentence3: But Tami was leaving with Rita and Mary. Sentence4: Gina felt lonely when she went home.

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
3, She grabbed her things and waited at the door for Tami.