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.
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Question: What was the name of the book darwin published?

Answer: What book did Darwin publish in 1859?


Question: Who sang on the banks of the river?

Answer: Who sang background on the 1959 song with lyrics on the banks of the river?


Question: Who is responsible for inventing the sewing machine?

Answer:
Who is responsible for inventing the lockstitch sewing machine?