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

Ex Input:
What was the title of the first feature film made in Cinemascope?

Ex Output:
cinemascope

Ex Input:
In which country are the Angel Falls, or Kerepakupai Ven?

Ex Output:
angel falls

Ex Input:
Which current Broadway musical has a Japanese therapist character called Christmas Eve?

Ex Output:
christmas eve