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

[Q]: Superior sagittal sinus is the largest of the sinuses.
[A]: What is the largest of the sinuses?


[Q]: An object attached to a spring sliding on a frictionless surface is an uncomplicated type of simple harmonic oscillator.
[A]: An object attached to a spring sliding on a frictionless surface is an uncomplicated type of what device?


[Q]: Voltaic cell type of cell has negative anode is positive cathode.
[A]:
What type of cell has negative anode is positive cathode?