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 English king was married to Eleanor of Castile?

Output: eleanor of castile


Input: Consider Input: On which island is Nassau, the capital of the Bahamas?

Output: nassau


Input: Consider Input: Which engineer built the Menai Suspension Bridge and the Caledonian Canal?


Output: menai suspension bridge