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: Tim bought a new lamp today. Sentence2: He went home to set it up. Sentence3: Tim opened the box and followed the instructions. Sentence4: He assembled the lamp within five minutes.

Ex Output:
5, Tim was pleased the lamp was so easy to set up.

Ex Input:
Sentence1: Hector has always bought coffee at a local shop before work. Sentence2: He realizes that his coffee buying habit is very expensive. Sentence3: He is proud that the coffee he made at home is so good. Sentence4: Hector kept brewing his own coffee and saved money.

Ex Output:
3, One day Hector decides to brew coffee at home.

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: Her mother left an angry message on her phone. Sentence4: Alice called her mother and apologized profusely.

Ex Output:
4, She threatened not to come to the wedding.