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

Ex Input:
What was the computer's name in 2001: A Space Odyssey?

Ex Output:
2001: a space odyssey


Ex Input:
What was Bon Jovi's first UK top ten hit single?

Ex Output:
bon jovi


Ex Input:
Afghanistan, Kazakhstan, Kyrgyzstan, Tajikistan and Turkmenistan all border which country?

Ex Output:

kyrgyzstan