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

Ex Input:
Blood is made up of red blood cells, white blood cells, platelets, and plasma.

Ex Output:
Blood is made up of red blood cells, white blood cells, platelets, and what else?

Ex Input:
Protist diseases in humans are caused by protozoa.

Ex Output:
What type of diseases in humans are caused by protozoa?

Ex Input:
Boron only occurs naturally in compounds with oxygen element.

Ex Output:
Boron only occurs naturally in compounds with what element?