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

Ex Input:
Who is the BBC's political editor?

Ex Output:
bbc


Ex Input:
Who played Bonnie in the 1967 film `Bonnie And Clyde`?

Ex Output:
bonnie and clyde


Ex Input:
What chemical element (Cu) is named after Cyprus?

Ex Output:

cu