Determine the topic of the question-answer pair. Question: "what caused the world war 2?"; Answer: "The main causes of World War II were nationalistic issues, unresolved issues, and resentments resulting from World War I and the interwar period in Europe, in addition to the effects of the Great Depression in the 1930s."? Topic:
Ans: Causes of World War II

Determine the topic of the question-answer pair. Question: "Who is the rap singer in right round with kesha in the background? *(dancer)*?"; Answer: ""Right Round" is a song performed by American rapper Flo Rida , released as the lead single from his second studio album, R.O.O.T.S. (2009)."? Topic:
Ans: Right Round

Determine the topic of the question-answer pair. Question: "how many amendments in the US constitution?"; Answer: "Twenty-seven amendments have been ratified since the original signing of the Constitution, the first ten of which are known collectively as the Bill of Rights ."? Topic:
Ans: List of amendments to the United States Constitution

Determine the topic of the question-answer pair. Question: "what are add ons?"; Answer: "Video game accessory , a piece of hardware used in conjunction with a video game console for playing video games"? Topic:
Ans: Add-on