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

Example Input: With which song did Swedish pop group Abba win the 1974 Eurovision Song Contest?
Example Output: abba

Example Input: Which Union leader of the American Civil War gave his name to a tree in California's 'Sequoia National Park'?
Example Output: american civil war

Example Input: Who played Bond Girl Domino Petachi in Never Say Never Again?
Example Output:
never say never again