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 wanted to create a railroad from cape town to cairo?
answer:
Who wanted to create a railroad from cape town to cairo originally?


question:
Where is diamonds are a girl best friend from?
answer:
What 1949 film is diamonds are a girl's best friend song originally from?


question:
Who played the reaper in bill and ted?
answer:

Who played the Grim Reaper in Bill & Ted's Bogus Journey?