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

Ex Input:
The Brooklyn Bridge crosses which river?

Ex Output:
brooklyn bridge


Ex Input:
Richard Block and David Quayle founded which British-based DIY retailing company in 1969?

Ex Output:
david quayle


Ex Input:
British actress Alison Steadman married which film director/writer in 1973?

Ex Output:

alison steadman