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.

Sentence1: Amy is enrolled in an advanced Plant Biology course. Sentence2: She has a test next week about Photosynthesis. Sentence3: She wrote a song about it to memorize the material more easily. Sentence4: Her song helped her and she then did well.
3, The information is complex and in depth.

Sentence1: Glen was in the mood for a walk. Sentence2: He put on his jacket and went outside. Sentence3: While walking on the sidewalk, he tripped and busted his knee open. Sentence4: Glen swore he'd never walk again.
4, Glen stood back up and limped back to his house.

Sentence1: Peter had used the same chair for Years. Sentence2: It was becoming worn out. Sentence3: When it arrived Peter was very happy. Sentence4: Peter thought it might even be more comfortable than the old one.
3, He decided to buy a new, more comfortable chair.