Q: Determine the topic of the question-answer pair. Question: "how many users do twitter have?"; Answer: "The service rapidly gained worldwide popularity, with over 500 million registered users as of 2012, generating over 340 million tweets daily and handling over 1.6 billion search queries per day."? Topic:
A: Twitter

Q: Determine the topic of the question-answer pair. Question: "who owns land rover?"; Answer: "It is part of the Jaguar Land Rover group, a subsidiary of Tata Motors of India."? Topic:
A: Land Rover

Q: Determine the topic of the question-answer pair. Question: "how many grape farms in united states?"; Answer: "As of the last census of agriculture in 2007, there were 2.2 million farms, covering an area of , an average of per farm."? Topic:
A: Agriculture in the United States

Q: Determine the topic of the question-answer pair. Question: "what zones are tropical?"; Answer: "The tropics is a region of the Earth surrounding the Equator ."? Topic:
A:
Tropics