instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
With eight goals which Barcelona player was the leading scorer in the 2009-10 Champions League?
answer:
barcelona

question:
The Byzantine Empire is the term used since the 19th century to describe the Roman Empire of the Middle Ages, centred on its capital, where?
answer:
byzantine empire

question:
Who wrote the 1999 novel Chocolat set in the French village of Lansquenet-sous-Tannes?
answer:
chocolat