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

Ex Input:
In 1867 who became the first Prime Minister of Canada?

Ex Output:
prime minister of canada


Ex Input:
What is the French name for the English Channel?

Ex Output:
channel


Ex Input:
What are bactrians and dromedaries?

Ex Output:

dromedary