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

Brothers Richard and Simon Mantell played which sport for England in the 2010 Commonwealth Games?
2010 commonwealth games

Alejandro Amaya, Carlos Arruza, Jaime Bravo and Carmelo Torres are famous Mexican?
alejandro amaya

Which 1956 film starring Burt Lancaster was shot in Paris, including at the Cirque d'hiver?

burt lancaster