Sumo wrestling draws crowd in Brazil - PhotoBlog http://photoblog.nbcnews.com/_news/2012/07/26/12974936-sumo-wrestling-draws-crowd-in-brazil?lite
Sumo - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Sumo
相撲 - 维基百科，自由的百科全书 http://zh.wikipedia.org/wiki/%E7%9B%B8%E6%92%B2
