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

Superior sagittal sinus is the largest of the sinuses.
What is the largest of the sinuses?

Hemodialysis has a patient's blood pass through a length of tubing that travels through an artificial kidney machine.
Which form of dialysis has a patient's blood pass through a length of tubing that travels through an artificial kidney machine?

The endocrine system produces hormones to regulate growth, development, and reproduction.
Which human organ system produces hormones to regulate growth, development, and reproduction?