TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Who is the only British Prime Minister to serve under 3 monarchs?

SOLUTION: prime minister of the united kingdom

PROBLEM: 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?

SOLUTION: clint eastwood

PROBLEM: In which sci-fi TV series did Dirk Benedict play Lieutenant Starbuck?

SOLUTION:
dirk benedict