In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to write a question that clarifies the given question in such a way that the generated question has one unique answer.

[EX Q]: Where does the umbilical vein enter the circulation of the fetus?
[EX A]: Where does less than a third of the blood from the umbilical vein enter the circulation of the fetus?

[EX Q]: Where did fighting began in spanish american war?
[EX A]: Where did fighting begin before the spanish american war, with the sinking of the Maine?

[EX Q]: First degree av block seen in which area?
[EX A]:
First degree av block disease most often seen in which area?