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 invented movable type and the machine to reproduce text?
answer:
Who invented the world's first movable type and machine to reproduce text?


question:
Who is the president of south africa now?
answer:
Who is the president of south africa who first took office in 2009?


question:
What is the value of the fourth power of ten?
answer:

What is the value of the fourth power of ten, spelled out?