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

Ex Input:
Lopburi, Phichit and Ang Thong are provinces in which Asian country?

Ex Output:
phichit

Ex Input:
What's the name of Doctor Who's home planet ?

Ex Output:
doctor who

Ex Input:
Nov 30, 1835 saw the birth of what famed American humorist and novelist, known for works such as The Prince and the Pauper and A Connecticut Yankee in King Arthur's Court, along with some other famous works?

Ex Output:
a connecticut yankee