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: Anne had just turned 50 when she noticed something unsettling. Sentence2: Her hair was beginning to come in gray! Sentence3: Then she decided to honor her wisdom and Years. Sentence4: She wore her gray hair with pride.
Example Output: 3, She thought about dyeing it to hide the gray.

Example Input: Sentence1: Ellie wanted a fish tank. Sentence2: She went and bought a big aquarium. Sentence3: Then she filled it with fresh clean water and gravel. Sentence4: Lastly, she added her fish.
Example Output: 5, Ellie thought it looked great.

Example Input: Sentence1: Keith lived in an area that had occasional earthquakes. Sentence2: The next day, he cut his hand while cutting food. Sentence3: And he had to drive himself to a hospital. Sentence4: Keith's car then skidded off the road when an earthquake struck.
Example Output:
2, But he thought keeping an first aid kit was unnecessary.