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.
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Question: Sentence1: Joey's uncle showed him a marble. Sentence2: He teased Joey and said it was his glass eye. Sentence3: Later, Joey played marbles with friends. Sentence4: Joey knew everybody was just teasing him.

Answer: 4, One boy said his marble was a cat's eye.

Question: Sentence1: Karen was a softball player. Sentence2: Her team wasn't doing very well. Sentence3: Her coach gave them a very inspiring speech. Sentence4: Karen improved with the team.

Answer: 4, Everyone started to practice and work much harder.

Question: Sentence1: Mom asked me to go pick up some things at the grocery store. Sentence2: I decided to take my bicycle to the store instead of walking. Sentence3: I met up with a friend and offered her a ride on my bicycle. Sentence4: As we were riding along, my bicycle broke in half.

Answer:
5, I realized that my bicycle had only been suitable for one rider.