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 song too marvelous for words?
answer:
Who wrote the lyrics to the song too marvelous for words?


question:
Who is the mother in how i met you mother?
answer:
Who plays The Mother in How I Met Your Mother?


question:
When's the next episode of shadowhunters coming out?
answer:

As of January, 2015, when is the next episode of Shadowhunters coming out?