instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
What was Casanova's occupation at the time of is death?
answer:
giacomo casanova


question:
Charon is a moon which orbits which body?
answer:
charon


question:
Pravachol, Lipitor, Mevacor, Altocor, and Zocor are brands of what $multi-billion cholesterol controlling drug, ultimately named after Greek meaning 'causing to stand'?
answer:

lovastatin