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]: How many days does it take an embryo to implant?
[A]: How many days does it most likely take for a human embryo to implant?


[Q]: When were nutrition labels introduced in the us?
[A]: When were nutrition labels mandated for most food products in the US?


[Q]: Who sang i only think of you on two occasions?
[A]:
Who sang I only think of you on two occasions in 1987?