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: Helen lived in the state of Washington. Sentence2: Helen wanted to visit Canada. Sentence3: Helen's car broke down on the day of her trip. Sentence4: Helen stayed home instead and planned to go another day.

Ex Output:
4, Helen decided it wasn't meant to be.

Ex Input:
Sentence1: Chase really wanted a new toy. Sentence2: His mom would not purchase a new toy for him. Sentence3: She advised he save his allowance. Sentence4: He saved his allowance.

Ex Output:
5, Chase bought himself a new toy.

Ex Input:
Sentence1: He decided to come down for the day. Sentence2: But then he saw that his ladder had fallen and lay on the ground! Sentence3: Noah had no way to get down from the treehouse! Sentence4: He yelled for his dad.

Ex Output:
1, Noah was playing in his treehouse.