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.

Example Input: Sentence1: Tommy called on the girl who sat next to him in class. Sentence2: He asked if she thought that the class was good. Sentence3: She gave him a frown and sad that she's in a relationship. Sentence4: Tommy was really embarrassed.
Example Output: 4, Tommy immediately turned around.

Example Input: Sentence1: Ivan got bitten by a mosquito on a forest hike. Sentence2: The bite was red and itchy, but it didn't bother him at first. Sentence3: A doctor looked at it and told Ivan the bite was infected! Sentence4: Ivan bought mosquito repellent for his next hike.
Example Output: 3, Then it swelled up terribly and became sore.

Example Input: Sentence1: Gina had detention. Sentence2: It was her first time. Sentence3: She talked with friends outside the room while pretending to be cool. Sentence4: Inside her stomach was turning in knots.
Example Output:
5, Gina was worried about her parents finding out.