instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Lexus is the luxury vehicle division of what car maker?
answer:
lexus


question:
The Battle of Poltava in 1709 was a victory by Peter the Great over which state?
answer:
battle of poltava


question:
Which actor played the lead in the film 'Air Force One'?
answer:

air force one