instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Soft of these best describes the way a feather feels.
answer:
Which of these BEST describes the way a feather feels?


question:
The sun delivers power to the chemical factory chloroplasts.
answer:
What delivers power to the chemical factory chloroplasts?


question:
A(n) protein is formed when amino acids are linked together in a long chain.
answer:

What is formed when amino acids are linked together in a long chain?