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: Bob went to the doctor. Sentence2: Bob realized that he had to get in shape. Sentence3: He joined a gym and started to watch what he ate. Sentence4: Bob got in shape.

Ex Output:
2, The doctor told him that he was overweight.

Ex Input:
Sentence1: Eddie and Angela hadn't been talking to each other for a long time. Sentence2: Finally, they sat down and agreed, it was time for a divorce. Sentence3: Eddie went to the courthouse and filed the paperwork. Sentence4: They were divorced a few months later.

Ex Output:
2, They lived in their house together like strangers.

Ex Input:
Sentence1: Humberto likes to jump on a trampoline. Sentence2: He has never fallen off and hurt himself. Sentence3: While jumping yesterday, he did just that. Sentence4: Humberto decided to retire from jumping on his trampoline.

Ex Output:
5, He never fell off a trampoline again.