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: He teased Joey and said it was his glass eye. Sentence2: Later, Joey played marbles with friends. Sentence3: One boy said his marble was a cat's eye. Sentence4: Joey knew everybody was just teasing him.
Example Output: 1, Joey's uncle showed him a marble.

Example Input: Sentence1: Nancy was sitting near the science building. Sentence2: She didn't notice until she looked around. Sentence3: Ian threw a pie directly in her face. Sentence4: Nancy began to cry and felt humiliated.
Example Output: 2, Ian tried to sneak close to her.

Example Input: Sentence1: My class and I went for a field trip. Sentence2: When we were driving to the location, our bus broke down. Sentence3: When the bus arrived, we all boarded and continued our way. Sentence4: The field trip went very well as we had hoped.
Example Output:
3, We all waited for another bus to show up to pick us up for an hour.