Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: The newest, outer layers of secondary xylem are called sapwood.

A: What are the newest, outer layers of secondary xylem called?
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Q: Soft of these best describes the way a feather feels.

A: Which of these BEST describes the way a feather feels?
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Q: All stages in the life of a cell does the cell cycle include.

A:
What stages in the life of a cell does the cell cycle include?
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