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

Ex Input:
Where is the Barbary Coast?

Ex Output:
barbary coast


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

Ex Output:
david bailey


Ex Input:
The assassination of which Austrian royalty precipitated World War I?

Ex Output:

assassination of archduke franz ferdinand of austria


