TASK DEFINITION: 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.
PROBLEM: Sentence1: My mom took me grocery shopping. Sentence2: She let me pick out all the food. Sentence3: I picked out a lot of candy and snacks! Sentence4: Then, she went to the register and paid for it all.

SOLUTION: 5, I ate a lot of candy that day.

PROBLEM: Sentence1: Tim bought a record player at a thrift shop. Sentence2: He asked his parents if they had any. Sentence3: They gave him their entire record collection from their youth. Sentence4: He felt cool and retro when he played records at a party.

SOLUTION: 2, He didn't have any records to play on it.

PROBLEM: Sentence1: Ava needed a plane ticket across the country. Sentence2: She feared it'd be expensive. Sentence3: She had earned enough miles to pay for her ticket! Sentence4: Ava was able to fly without spending any money on her ticket.

SOLUTION:
3, Then the agent told her something wonderful.