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

Ex Input:
The cardiovascular system in the human body consists of the heart, a network of blood vessels, and blood.

Ex Output:
Which system in the human body consists of the heart, a network of blood vessels, and blood?


Ex Input:
When the energy of the earthquake reaches shore, it forms a huge wave called a tsunami.

Ex Output:
When the energy of the earthquake reaches shore, it forms a huge wave called?


Ex Input:
Groundwater primarily comes from precipitation.

Ex Output:
Where does groundwater primarily come from?