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

Ex Input:
Which 1970s musical film starred Angela Lansbury as a trainee witch?

Ex Output:
angela lansbury


Ex Input:
Name Alfred Hitchcock's first sound film as director?

Ex Output:
alfred hitchcock


Ex Input:
What is the name of the home of Clydebank?

Ex Output:

clydebank