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:
Who sang the best day of my life?
answer:
Who sang the 2013 version of Best Day of My Life?


question:
Who's won the most fa cup's?
answer:
What team won the most fa cup's?


question:
Who sings you make me so very happy?
answer:

Who sings lead vocals for you make me so very happy, Brenda Holloway version?