TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Who played the character Gene Hunt in the UK TV series 'Life on Mars' and 'Ashes to Ashes'?

SOLUTION: life on mars

PROBLEM: What is the smallest country in Central America Costa Rica, Venezuela or El Salvador?

SOLUTION: central america

PROBLEM: What is the official language of Barbados?

SOLUTION:
barbados