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

Example Input: In which opera does a hunchback jester help his master, the Duke of Mantua, to seduce the daughter of a courtier?
Example Output: duke of mantua

Example Input: Buried in neither Westminster nor Windsor, where is the tomb of Edward II?
Example Output: edward ii of england

Example Input: Mary, Baroness Soames is the only current female member of the Order of the Garter. Who was her father?
Example Output:
mary soames