Q: Is the question "How does a submarine operate ?" asking about an entity, an abbreviation, a description, a human, a location, or a numeric entity?
A: description

Q: Is the question "Who were leaders of the Byzantine empire ?" asking about an entity, an abbreviation, a description, a human, a location, or a numeric entity?
A: human

Q: Is the question "What did the pyramid-builders of Egypt mainly eat ?" asking about an entity, an abbreviation, a description, a human, a location, or a numeric entity?
A: entity

Q: Is the question "Who owns CNN ?" asking about an entity, an abbreviation, a description, a human, a location, or a numeric entity?
A:
human