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.

Ex Input:
Sentence1: The delivery man handed a package to me. Sentence2: I opened the box. Sentence3: He couldn't hear me and drove off. Sentence4: I had to call to find out what was going on.

Ex Output:
3, Since nothing was inside, I tried shouting at the delivery man.

Ex Input:
Sentence1: He went to a therapist and discussed his fear. Sentence2: His therapist said he should confront his fear to overcome it. Sentence3: Jason's homework was to look for a spider in his basement. Sentence4: He found a very large spider there.

Ex Output:
1, Jason was terrified of spiders.

Ex Input:
Sentence1: Tommy was having a bad day. Sentence2: His friends tried to cheer him up by taking him out. Sentence3: He drank and danced with his friends all night. Sentence4: Tommy had good friends.

Ex Output:
3, He grumbled but went along.