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: Ken was on vacation in the tropics. Sentence2: He was learning to scuba dive. Sentence3: He passed his certification course and then dived every day. Sentence4: Soon he was learning lots of facts about the ocean and exploring.
Example Output: 5, It was the best vacation Ken had ever taken.

Example Input: Sentence1: Last week the internet went out. Sentence2: My wife and I were bored out of our minds. Sentence3: Every other option available seemed boring. Sentence4: We ended up having a fun time after all.
Example Output: 4, Eventually we just drank and talked for a while.

Example Input: Sentence1: Ida had tickets to a two-day outdoor music festival. Sentence2: But then she saw that other attendees weren't upset. Sentence3: They just danced in the rainy, so I followed suit. Sentence4: Ida was glad she could dance in the rain at the festival.
Example Output:
2, She was sad when it began to rainy on day one.