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: Healthy lungs is necessary in a person who wishes to play wind instruments.
Example Output: What is necessary in a person who wishes to play wind instruments?

Example Input: Mars other planet in the solar system is the easiest to observe from earth.
Example Output:
Which other planet in the solar system is the easiest to observe from earth?