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: Yesterday, my mother in law called, and wanted to go out to some store. Sentence2: She picked me up at 4:30, and we headed out. Sentence3: We went to one store after the other looking for good deals. Sentence4: Absolutely none of the stores had anything good to buy.

SOLUTION: 5, We went home without buying anything.

PROBLEM: Sentence1: Chuck always wanted to join the debate team at school. Sentence2: He took a speech class over the summer to help. Sentence3: As soon as the school year started he signed up for the team. Sentence4: Chuck joined and did fairly well.

SOLUTION: 2, He has great ideas to debate with but he is scared of public speaking.

PROBLEM: Sentence1: A waiter was dying to go home but he still had a table eating. Sentence2: The waiter printed out the bill and slipped it on the table. Sentence3: The guests noticed the bill after a while and took a hint. Sentence4: Gratefully, the waiter left for the evening.

SOLUTION:
4, They paid for the bill and left.