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

Ex Input:
To which country do the Chatham Islands belong?

Ex Output:
chatham islands


Ex Input:
The counties of Alameda, El Dorado, Fresno, Marin, Mariposa, Nevada, Orange, Riverside, Sacramento, San Bernardino, San Joaquin, San Mateo, Santa Clara, Santa Cruz, Sonoma and Ventura are in what state of the USA?

Ex Output:
santa clara, california


Ex Input:
Which band of the 2000s had Alex Band as the lead singer?

Ex Output:

alex band