Given a broad category, generate a trivia-type question based on a specific entity in that category. The question should be non-ambiguous. External resources such as Wikipedia could be used to obtain the facts.

Example Input: transportation
Example Output: The Brooklyn Bridge crosses which river?

Example Input: tv
Example Output: In the children's television programme, who is the voice of Bob the Builder's father?

Example Input: geology
Example Output:
What type of rock is granite?