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

Q: Phospholipids are vesicles made of.

A: What are vesicles made of?
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Q: The cytoskeleton holds cell organelles in place within the cytoplasm.

A: What part of the cell holds cell organelles in place within the cytoplasm?
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Q: The scientific revolution took place europe starting in the 1500s.

A:
The scientific revolution took place where starting in the 1500s?
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