Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.

concept: Percy Jackson The Olympians  question:  what is the second percy jackson book called?
['The Sea of Monsters']

concept: Tony Romo  question:  who is tony romo engaged to?
['Candice Crawford']

concept: United States  question:  what kind of government does the united states have today?

Presidential system, Federal republic, Representative democracy, Two-party system, Constitutional republic, Republic