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

Ex Input:
Dreams from my father, a story of race and heritance is about which politician?

Ex Output:
dreams from my father

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

Ex Output:
david bailey

Ex Input:
David Vine, David Coleman and Sue Barker have all hosted which BBC television quiz show?

Ex Output:
sue barker