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

Ex Input:
Which American film actress, born in 1947, had a 14 year relationship with Clint Eastwood, starring with him in several films before splitting up in 1989?

Ex Output:
clint eastwood


Ex Input:
Who won an Oscar for the music for Chariots of Fire in 1981?

Ex Output:
chariots of fire


Ex Input:
Who is the only professional heavyweight boxer to have retired undefeated?

Ex Output:

boxing