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

[EX Q]: The sum of the masses of the atoms in the formula is referred to as molecular mass.
[EX A]: The sum of the masses of the atoms in the formula is referred to as what?

[EX Q]: Overlapping food web an eagle, a land eater, goes and gets fish from the sea, as well, its called.
[EX A]: When an eagle, a land eater, goes and gets fish from the sea, as well, its called?

[EX Q]: Scar is name for a piece of collagen-rich skin formed after the process of wound healing that differs from normal skin.
[EX A]:
What is name for a piece of collagen-rich skin formed after the process of wound healing that differs from normal skin?