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 wrote the hymn on christ the solid rock i stand?
answer:
Who wrote the text of the hymn On Christ the Solid Rock I Stand?


question:
Who sings that song all about that bass?
answer:
Who sings the original version of the song "All About That Bass"?


question:
Who came up with the joke why did the chicken cross the road?
answer:

Who came up with the riddle why did the chicken cross the road?