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

Input: Consider Input: Joseph Addison and Richard Steele founded (in 1711), and Boris Johnson edited, which British magazine?

Output: boris johnson


Input: Consider Input: The Brooklyn Bridge crosses which river?

Output: brooklyn bridge


Input: Consider Input: Which travel guide publisher was acquired by the BBC's commercial division BBC Worldwide Ltd for 130m in 2007, and sold for 51m in 2013?


Output: bbc worldwide