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:
When does the evening standard go to print?
answer:
When did the evening standard go to print before 2009?


question:
Who decided to use agent orange in vietnam?
answer:
What individual decided to use agent orange in vietnam in mid-1961?


question:
What was the great pyramid of giza made out of?
answer:

What is the internal structure of the Great Pyramid of Giza made out of?