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: Her parents surprised her with a nice dinner out and a small present. Sentence2: Happily, her parents gave her a monogram necklace. Sentence3: On the way home, Betsy misplaced the necklace in the car. Sentence4: Betsy felt really bad for the rest of the night.
Example Output: 1, Betsy was about to celebrate her sixteenth birthday.

Example Input: Sentence1: Andrew had never been in trouble for anything. Sentence2: Andrew's friends came over and wanted to drink. Sentence3: So Andrew took out his parents secret stash of alcohol. Sentence4: They drank the alcohol and got drunk.
Example Output: 2, His parents were out of town for the week.

Example Input: Sentence1: Ronnie was riding his bike to work the other day. Sentence2: All of a sudden he hit a rock and fell. Sentence3: He wasn't hurt but his outfit was ruined. Sentence4: Ronnie's boss commended him on his dedication.
Example Output:
4, He kept going to work anyway.