Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year Location | Mens Singles | Womens Singles | Mens Doubles | Womens Doubles |
| --- | --- | --- | --- | --- |
| 2012 Poznan | Wang Hao | Ding Ning | Kenta Matsudaira Koki Niwa | Cheng I-Ching Huang Yi-Hua |
| 2011 Wladyslawowo | Lee Sang Su | Wu Yang | Mattias Karlsson Robert Svensson | Guo Yue Li Xiaodan |
| 2010 Warsaw | Vladimir Samsonov | Li Jiao | Marcos Freitas Andrej Gacina | Haruna Fukuoka Reiko Hiura |
| 2009 Warsaw | Timo Boll | Fan Ying | Kim Jung-Hoon Oh Sang-Eun | Fan Ying Wu Yang |
| 2008 Warsaw | Timo Boll | Feng Tianwei | Lucjan Blaszczyk Wang Zeng Yi | Daniela Dodean Elizabeta Samara |
| 2006 Warsaw | Timo Boll | Li Qian | Lucjan Blaszczyk Wang Zeng Yi | Sayaka Hirano Reiko Hiura |
| 2004 Warsaw | Timo Boll | Lau Sui Fei | Timo Boll Christian Suss | An Konishi Li Jiao |
| 2002 Warsaw | Ma Lin | Zhang Yining | Qin Zhijian Wang Liqin | Li Nan Zhang Yining |
| 2000 Warsaw | Liu Guozheng | Zhang Yining | Liu Guozheng Ma Lin | Zhang Yingying Zhang Yining |
Question:
Who won the mens doubles when wu yang won the womens singles?
Answer:
Mattias Karlsson Robert Svensson