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: Linda went to buy some frozen yogurt. Sentence2: She saw some white yogurt and assumed it was vanilla. Sentence3: She loved vanilla, so that was what she got. Sentence4: Linda was very disappointed.
Example Output: 4, She tasted it and it was horrible.

Example Input: Sentence1: Jennifer dove from the starting block. Sentence2: She always felt that she held the rest of her team back. Sentence3: She even past a few and actually placed second in her event. Sentence4: Jennifer was proud of herself for swimming so well.
Example Output: 3, She pushed harder than she ever had to catch the other swimmers.

Example Input: Sentence1: Nancy walked inside the subway store. Sentence2: She asked for a footlong chicken sub. Sentence3: She noticed that it was a half of a foot long. Sentence4: Nancy demanded she be given the other six inches she asked for.
Example Output:
3, However, she looked away when it was being prepared.