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: Tom fond that he was no longer happy in his job. Sentence2: Tom decided that it was time to find a new job. Sentence3: Tom went on job interviews and talked to a lot of people. Sentence4: He finally received a job offer.

Ex Output:
3, Tom looked through the want ads and put in applications.

Ex Input:
Sentence1: Matt decided to go bar hopping with his two friends one night. Sentence2: They drank 3 shots in one bar. Sentence3: They went to 4 more, drinking 3 shots in each. Sentence4: Matt and friends walked home and slept it off.

Ex Output:
4, Matt ended up getting too drunk and lost his phone.

Ex Input:
Sentence1: My laboratory professor was explaining today's lab. Sentence2: He told us not to pour water followed by an acid. Sentence3: While I was looking at my notes, I barely paid attention. Sentence4: When the experiment began, I poured water before an acid in a tube.

Ex Output:
5, My professor was very upset.