You will be given a definition of a task first, then some input of the task.
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Blood from the body enters right atrium of the heart before it is pumped to the right ventricle and then to the lungs.
Output:
Blood from the body enters what chamber of the heart before it is pumped to the right ventricle and then to the lungs?