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

Input: Consider Input: Which Bob Dylan song begins You got a lotta nerveTo say you are my friend. When I was down, You just stood there grinning?

Output: bob dylan


Input: Consider Input: In May 1940, who became British Prime Minister after the resignation of Neville Chamberlain?

Output: prime minister of the united kingdom


Input: Consider Input: What are chlorine, bromine and iodine?


Output: chlorine