What is the question "How do you find oxidation numbers ?" asking about?
A: description

What is the question "What are the top 5 fiction books of all time ?" asking about?
A: entity

What is the question "What is the web address at which I can find the e-mail address of a member of the US House of Representatives ?" asking about?
A: location

What is the question "Who said : `` Old soldiers never die ; they just fade away '' ?" asking about?
A:
human