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: John was cooking dinner last night. Sentence2: He was making pork chops. Sentence3: Unfortunately, he dropped a pan and burned himself. Sentence4: He had to go to the hospital.

SOLUTION: 5, John had a miserable evening.

PROBLEM: Sentence1: She was unsure as to whether she should open the door or not. Sentence2: Slowly she creaked open the door and peered outside. Sentence3: Her brother leaped out at her and gave her a good scare. Sentence4: She screamed and pushed her brother away.

SOLUTION: 1, The doorbell rang but no one was there.

PROBLEM: Sentence1: Hannah's parents signed her up for piano lessons. Sentence2: She tried to practice as hard as she could. Sentence3: Hannah could not get her fingers to work properly. Sentence4: Hannah gave up the piano.

SOLUTION:
2, After her first piano lesson, Hannah felt discouraged.