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.

Ex Input:
Sentence1: Gina was hungry. Sentence2: She was on a road trip and only had sweet snacks. Sentence3: Her mother agreed with him. Sentence4: So Gina suffered from stomachaches.

Ex Output:
3, Her dad insisted they keep driving instead of making a food stop.

Ex Input:
Sentence1: She didn't know how it happened. Sentence2: She convinced the family to keep the kittens. Sentence3: It wound up having 7 kittens. Sentence4: Dorothy made sure to buy lots of cat food.

Ex Output:
1, Dorothy's cat was pregnant.

Ex Input:
Sentence1: Ana was a hardworking mom. Sentence2: One day she booked herself an afternoon at a spa. Sentence3: She had her whole body massaged. Sentence4: She felt magnificently relaxed and contented afterwards.

Ex Output:
4, She even had hydrotherapy sessions.