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

Example Input: Allopurinol is typically prescribed for which illness?
Example Output: allopurinol

Example 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?
Example Output: santa clara, california

Example Input: Which woman was the singer with Big Brother and the Holding Company?
Example Output:
big brother and the holding company