instruction:
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.
question:
Where does the umbilical vein enter the circulation of the fetus?
answer:
Where does less than a third of the blood from the umbilical vein enter the circulation of the fetus?


question:
Who invented the system of latitudes and longitudes in 2nd century a.d?
answer:
Who invented the system of latitudes and longitudes, measuring latitudes using the island of Rhodes in 2nd century a.d?


question:
When do harvey and sabrina get back together?
answer:

When is the first time that Harvey and Sabrina get back together?


