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

Input: Consider Input: Who played Lionel Hardcastle in the TV series 'As Time Goes By'?

Output: as time goes by


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

Output: central america


Input: Consider Input: What was the name of country music`s first superstar who died at the age of 29 from drink and drug abuse?


Output: country music