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: We took a family vacation to the beach last year. Sentence2: I spent a lot of time reading with my mom on the beach. Sentence3: One day while reading, I got stung by a horrible beach wasp. Sentence4: My arm swelled and was painful, I almost had to go to the hospital.
Example Output: 5, Eventually I healed.

Example Input: Sentence1: After getting off the school bus, I realized that my phone is missing. Sentence2: The customer service representative did it for me. Sentence3: In addition, he said that there was a call made to Jamaica. Sentence4: I knew someone had stolen it.
Example Output: 2, Since there was service on it, I decided to cancel it.

Example Input: Sentence1: He wanted to join them but he was intimidated. Sentence2: One day he summoned the courage to play handball with them. Sentence3: He found that they were actually very nice. Sentence4: Javier began playing handball with them regularly.
Example Output:
1, Javier always noticed the kids playing handball near his house.