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

[Q]: Who was in the films Zelig, Stardust Memories, and Broadway Danny Rose?
[A]: broadway danny rose


[Q]: Physics. What is the SI unit for amount of substance?
[A]: amount of substance


[Q]: Barrow Point is the northernmost point of which country?
[A]:
barrow, alaska