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

Example Input: Bound for Glory is the 1943 autobiography of which singer-songwriter?
Example Output: bound for glory

Example Input: In May 1940, who became British Prime Minister after the resignation of Neville Chamberlain?
Example Output: prime minister of the united kingdom

Example Input: The Briish Airways subsidiary BA Connect was sold to which other airline?
Example Output:
airline