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.

Q: Sentence1: Tim wanted to learn astronomy. Sentence2: However he was to young to be an astronaut. Sentence3: This news made him sad. Sentence4: Tim worked hard in school to become one.

A: 2, He wanted to go into outer space.
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Q: Sentence1: The people who lived there did not know. Sentence2: They left for work one day, and the gas filled up the house. Sentence3: A small spark caused the house to explode. Sentence4: When they returned, they saw that their house was gone.

A: 1, There was a gas leak in a house down the street.
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Q: Sentence1: Alec's daughter wanted more blocks to play with. Sentence2: Alec figured that blocks would develop her scientific mind. Sentence3: Alec's daughter made words with them rather than structures. Sentence4: Alec was happy to see his daughter developing her verbal ability.

A:
3, Alec bought blocks with letters on them.
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