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.

Input: Consider Input: Sentence1: His owner walked him up to the platform one day. Sentence2: He was scared to slide down. Sentence3: They continued to do this every day on their walk. Sentence4: The Malamute eventually tried to slide down the slide.

Output: 1, The Malamute always sniffed at the slide during his walk.

Input: Consider 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.

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

Input: Consider Input: Sentence1: But there was no coffee machine in the school for kids. Sentence2: There was however a soda vending machine. Sentence3: Amy just needed to decide which soda had the most caffeine. Sentence4: Amy picked a Pepsi to drink.
Output: 1, Amy was going to buy coffee to beat her coffee crash.