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

Example Input: The bones of the newborn skull are not fully ossified and are separated by large areas called fontanelles.
Example Output: The bones of the newborn skull are not fully ossified and are separated by large areas called what?

Example Input: Light retains its original color under water because frequency remains the same when light is refracted.
Example Output: Light retains its original color under water because what remains the same when light is refracted?

Example Input: A prism helps people understand what makes up white light.
Example Output:
Which object helps people understand what makes up white light?