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

Input: Consider Input: In which war did the Sack of Badajoz takeplace?

Output: siege of badajoz

Input: Consider Input: Aldebaran is the brightest star in which constellation?

Output: aldebaran

Input: Consider Input: Where did the borzoi dog breed originate?
Output: borzoi