What is the question "What southwestern state is dubbed The Silver State ?" asking about?
A: location

What is the question "Which operating system runs on IBM-compatible machines ?" asking about?
A: entity

What is the question "Name the designer of the shoe that spawned millions of plastic imitations , known as ` jellies ' ." asking about?
A: human

What is the question "Name the food company that traveled to Soviet Georgia to film a series of ads ." asking about?
A:
human