What is the question "What food did Marco Polo introduce into Italy from the court of Kubla Khan ?" asking about?
A: entity

What is the question "What is a pig in a poke ?" asking about?
A: description

What is the question "What author was appointed U.S. ambassador to Spain in 1842 ?" asking about?
A: human

What is the question "What river is Pocahontas buried along ?" asking about?
A:
location