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.

Input: Consider 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.

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

Input: Consider Input: Sentence1: Mia loved being outdoors. Sentence2: One summer, she decided to go mountain climbing. Sentence3: She joined a club of people who climbed mountains together. Sentence4: Mia had a great time.

Output: 4, They climbed the tallest mountain in her area.

Input: Consider Input: Sentence1: Today was Iris's fifth birthday! Sentence2: All of her friends were there. Sentence3: She opened presents and had cake. Sentence4: Iris had a lot of fun at her party.
Output: 2, Her mom had planned her a surprise party.