Q: Determine the topic of the question. Question: "what does Gringo mean?" Topic:
A: Gringo

Q: Determine the topic of the question. Question: "What U.S. President's head has been featured on the nickel (five-cent coin) since 1938??" Topic:
A: Nickel (United States coin)

Q: Determine the topic of the question. Question: "what cars have smart key systems?" Topic:
A: Smart key

Q: Determine the topic of the question. Question: "What is firebird server?" Topic:
A:
Firebird (database server)