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

Ex Input:
What name was given to the 1950-60s mainstream country music style of artists including Patsy Cline, Tammy Wynette, Jim Reeves, and Charlie Rich?

Ex Output:
charlie rich


Ex Input:
Who was in the films Zelig, Stardust Memories, and Broadway Danny Rose?

Ex Output:
broadway danny rose


Ex Input:
Edward Hopper painted a famous picture in 1929 that shares a name with which dish?

Ex Output:

edward hopper