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.

Q: Who sings backup on thank you led zeppelin?

A: Who sings backup on Thank You by Led Zeppelin and plays drums for the band?
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Q: Where does the umbilical vein enter the circulation of the fetus?

A: Where does less than a third of the blood from the umbilical vein enter the circulation of the fetus?
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Q: Who did stevie wonder sing happy birthday to?

A:
Who does Stevie Wonder sing "Happy Birthday" to in the song?
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