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

[EX Q]: 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 A]: clint eastwood

[EX Q]: In 2011, Christian Bale won a Best Supporting Actor Oscar for his role as an assistant to his half-brother in which boxing related film?
[EX A]: christian bale

[EX Q]: Abbotsford House, on the banks of the Tweed, was the home of which author?
[EX A]:
abbotsford house