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

Input: Consider Input: Manchild and Buffalo Stance were hits for which singer?

Output: manchild


Input: Consider Input: Which two brothers had hits with Cathy's Clown and Wake Up Little Susie?

Output: cathy's clown


Input: Consider Input: Ed Gagliardi, Al Greenwood and Dennis Elliot have all been in which group?


Output: ed gagliardi