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

Ex Input:
Hemodialysis has a patient's blood pass through a length of tubing that travels through an artificial kidney machine.

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

Ex Input:
Bees are naturalized on every continent except antarctica.

Ex Output:
Bees are naturalized on every continent except which?

Ex Input:
Some meteorites are made of iron and nickel and are thought to be very similar to the core of the earth.

Ex Output:
Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth?