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

Ex Input:
Which model was married to photographer David Bailey for 10 years, from 1975?

Ex Output:
david bailey


Ex Input:
Brasilia is the capital but which city in Brazil has the largest population?

Ex Output:
brazil


Ex Input:
Who won the Best Actress Oscar in 2010 for her role as Leigh Anne Tuohy in the film 'The Blind Side'?

Ex Output:

the blind side