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: Alice was getting married in a few weeks. Sentence2: One night, her mother called and she forgot to call her back. Sentence3: She threatened not to come to the wedding. Sentence4: Alice called her mother and apologized profusely.

Ex Output:
3, Her mother left an angry message on her phone.

Ex Input:
Sentence1: Javier always noticed the kids playing handball near his house. Sentence2: He wanted to join them but he was intimidated. Sentence3: One day he summoned the courage to play handball with them. Sentence4: Javier began playing handball with them regularly.

Ex Output:
4, He found that they were actually very nice.

Ex Input:
Sentence1: She remembered paid psychology experiments in college. Sentence2: Jane searched for paid experiments and found Mechanical Turk. Sentence3: She was now able to participate in psychology experiments at home. Sentence4: Jane was finally able to earn extra money.

Ex Output:
1, Jane needed to earn some extra money.