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

Ex Input:
Who was the only British medal winner at the 2010 Winter Olympics?

Ex Output:
2010 winter olympics


Ex Input:
Aldebaran is the brightest star in which constellation?

Ex Output:
aldebaran


Ex Input:
Which province of Canada has the longest border with the USA?

Ex Output:

province of canada