Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Input: Consider Input: Which rank of the peerage is directly below a duke?

Output: duke

Input: Consider Input: Which river begins in the Rocky Mountains in south-west Colorado, crosses New Mexico and forms the border between Mexico and the USA before reaching the Gulf of Mexico?

Output: new mexico

Input: Consider Input: Great short-stories like The Gift of the Magi, The Ransom of Red Chief, and The Cop and the Anthem are from what collection of O. Henry that was a reaction to a statement that only four hundred people mattered in New York?
Output: the gift of the magi