What is the question "What terror of the sea did Johnny Horton sing about ?" asking about?
A: entity

What is the question "Who is the owner of CNN ?" asking about?
A: human

What is the question "What doctor is synonymous with footwear and foot care ?" asking about?
A: human

What is the question "What are the chemicals used in glowsticks ?" asking about?
A:
entity