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

[EX Q]: Which alliteratively-named politician served as Abraham Lincoln's Vice-President between 1861 and 1865?
[EX A]: abraham lincoln

[EX Q]: Who composed the opera 'Albert Herring' in 1947?
[EX A]: albert herring

[EX Q]: Pashtu and Dari are the official languages of which country?
[EX A]:
dari