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


question:
Which 1995 'Space' move starred Tom Hanks; Bill Paxton and Kevin Bacon?
answer:
tom hanks


question:
Which state donated the land occupied by the US capital city, Washington, District of Columbia?
answer:

washington, d.c.