In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: What kind of family is haumea part of? Answer: a collisional family

A: Haumea is part of the a collisional family.
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Q: Question: How do heavy alkanes affect the skin? Answer: form a protective layer

A: Form a protective layer do heavy alkanes affect the skin.
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Q: Question: When a stream flows from a hard to  soft rock area, what is often formed? Answer: a waterfall

A:
A waterfall a stream flows from a hard to  soft rock area, what is often formed.
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