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

Example Input: Who played Bonnie in the 1967 film `Bonnie And Clyde`?
Example Output: bonnie and clyde

Example Input: Who starred in and directed the 1993 film A Bronx Tale?
Example Output: a bronx tale

Example Input: The trio The Andrews Sisters consisted of Patty, Maxine and which other ?
Example Output:
the andrews sisters