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.

Example Input: Who introduced the technique of sign drawing of a man as a measure of intelligence?
Example Output: Who first introduced the technique of sign drawing of a man as a measure of intelligence?

Example Input: When did a/c first appear in homes?
Example Output: When did the first a/c unit appear in a home?

Example Input: Where is the villi located in the small intestine?
Example Output:
On which mid-sectional part of the small intestine, are some villi located?