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

[EX Q]: Phospholipids are vesicles made of.
[EX A]: What are vesicles made of?

[EX Q]: Cells are small biological structures that make up all living things, including the human body.
[EX A]: What small biological structures make up all living things, including the human body?

[EX Q]: Soft describes the texture of a kitten's fur.
[EX A]:
Which characteristic describes the texture of a kitten's fur?