instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
In which classic T.V. crime series did Captain Frank Furillo appear ?
answer:
frank furillo


question:
In which city could you visit the Anne Frank House?
answer:
anne frank house


question:
Composer Arcangelo Corelli (1653 - 1713) is associated with which instrument?
answer:

arcangelo corelli