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

Example Input: 'Dookie' and '21st. Century Breakdown' are albums by which American rock band?
Example Output: 21st century breakdown

Example Input: Court Philippe Chatrier, which has stands named after Jacques Toto Brugnon, Jean Borotra, Henri Cochet, and Ren Lacoste, is the main court of an international tennis venue in which city?
Example Output: stade roland garros

Example Input: The Card Players and The Boy in the Red Vestare are works by which 19th century French artist?
Example Output:
the card players