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

Breast cancer is the most common type of cancer in adult females.
What is the most common type of cancer in adult females?

Plasma matter makes up most of the universe.
What type of matter makes up most of the universe?

One of the early signs of cell disease is this "leaking" of sodium ions into the body cells.

One of the early signs of cell disease is this "leaking" of what into the body cells?