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.

Where would the highest density of mangrove forests be found?
What country has the largest percentage of the world's mangrove forests?

When did the first usb flash drive appear on the retail market?
When did the first usb flash drive appear on the global retail market?

Who played guitar on the beatles while my guitar gently weeps?

Who played an overdubbed lead guitar part on the beatles while my guitar gently weeps?