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

[EX Q]: Which British Prime Minister delivered the 'Winds of Change' speech in 1960?
[EX A]: wind of change

[EX Q]: Who achieved fame for his ,'Confessions Of An English Opium Eater'?
[EX A]: confessions of an english opium-eater

[EX Q]: Which horse in a story by Anna Sewell, began life called 'Darkie' and later changed names as it changed owners?
[EX A]:
anna sewell