What is the question "What 's the staff of life mentioned in the Lord 's Prayer ?" asking about?
A: description

What is the question "Which produces the longer sperm - an elephant or a mouse ?" asking about?
A: entity

What is the question "What 's the tallest building in New York City ?" asking about?
A: location

What is the question "Who is the President of Ghana ?" asking about?
A:
human