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: Arnold was scared of bats. Sentence2: He thought that if they bite him he would turn into a vampire. Sentence3: One day he saw a bat in his bathroom. Sentence4: He freaked out so much he screamed.

SOLUTION: 5, The bat flew directly toward the source of the scream.

PROBLEM: Sentence1: I spend all of my time working on my writing. Sentence2: I've decided to join an online dating community. Sentence3: As I join, I realize that I don't particularly like other people. Sentence4: I began to write more.

SOLUTION: 2, As a result I have begun to feel quite lonely.

PROBLEM: Sentence1: Sally is estranged from the family. Sentence2: She ran away to get married and did not keep in contact. Sentence3: Her husband is now in a hospice. Sentence4: Sally wanted to inform the family of her husband's condition.

SOLUTION:
1, My sister in law Sally contacted the family last month.