Detailed Instructions: 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.
Problem:Sentence1: I went to the store to buy a phone. Sentence2: I brought it home and called all my friends. Sentence3: They wanted to see it too. Sentence4: They were impressed with my phone.
Solution:

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
2, It was extremely advanced.