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

Input: Consider Input: The novels 'The Shipmaster, 'The Iron Ships' and 'The Trade Winds' by Cyril Abraham, are based on which 1970's British tv series?

Output: cyril abraham


Input: Consider Input: Which English king was married to Eleanor of Castile?

Output: eleanor of castile


Input: Consider Input: Who played Old Deuteronomy and Bustopher Jones in the original London production of Cats in 1981?


Output: cats