1. 
   Yang Cheng Tong
   Yang Cheng Tong, ({zh|c=羊城通|p=Yáng​ chéng ​tōng​|l=Ram City Pass}) is a contactless rechargeable stored value smartcard designed for paying the travel fares in the metro, buses, taxis and ferries in Guangzhou, China and surrounding cities, namely Foshan, Huadu, Zengcheng and Panyu. I...
   Found op http://en.wikipedia.org/wiki/Yang_Cheng_Tong
   
   
2. 
   Yang Tong
   Yang Tong (楊侗) (605–619), known in traditional histories by his princely title of Prince of Yue (越王) or by his era name as Lord Huangtai (皇泰主), posthumous name (as bestowed by Wang Shichong) Emperor Gong (恭皇帝), courtesy name Renjin (仁謹), was an emperor of the Chinese Sui D...
   Found op http://en.wikipedia.org/wiki/Yang_Tong
   
   

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