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

Example Input: What type of creature is an argali?
Example Output: argali

Example Input: Which major river has its source at the confluence of the rivers Brigach and Breg in the Black Forest?
Example Output: breg

Example Input: Count Duckula was a spinoff from which other children's animated series?
Example Output:
count duckula