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

[Q]: The Bob Dylan songs 'Desolation Row', 'Tombstone Blues' and 'Like A Rolling Stone' featured on which album?
[A]: tombstone blues


[Q]: Which boxer won a 1.8m claim against promotor Frank Warren in March 2009?
[A]: boxing


[Q]: In May 1940, who became British Prime Minister after the resignation of Neville Chamberlain?
[A]:
prime minister of the united kingdom