Great. Whats else can you tell me about its etymology? 
 Hi, I want to learn about United States Infrastructure? 
 You're most welcome! 
 Hello. As of 2007 China is the only country whose total greenhouse gas emissions exceed those of the United States. 
 What else can you educate me on its infrastructure?
Hello. As of 2007 China is the only country whose total greenhouse gas emissions exceed those of the United States.