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:
The back of the leg is called what?
answer:
The back of the lower leg is called what?


question:
When did gender testing of female olympic athletes begin?
answer:
When did gender testing of female olympic athletes first begin?


question:
When does episode 107 of dragonball super air?
answer:

When did episode 107 of Dragonball super originally air?