What is the question "What river is Windsor Castle on ?" asking about?
A: location

What is the question "What is the former name of Zimbabwe ?" asking about?
A: entity

What is the question "What 's the better-known identity of John Merrick , the noble ogre of Victorian England ?" asking about?
A: human

What is the question "What was the infamous feat of Germany 's U-2 submarine ?" asking about?
A:
description