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.

When did gender testing of female olympic athletes begin?
When did gender testing of female olympic athletes first begin?

When was the wreck of the titanic found?
On what date was the wreck of the Titanic found?

When did the land before time come out?

When did the land before time come out in the US?