Table: list of ittf pro tour winners
[['year location', 'mens singles', 'womens singles', 'mens doubles', 'womens doubles'], ['2012 velenje', 'zhang jike', 'ding ning', 'ma long zhang jike', 'ding ning guo yan'], ['2011 velenje', 'xu xin', 'wu yang', 'wang hao zhang jike', 'guo yue li xiaoxia'], ['2010 velenje', 'lee sang - su', 'li qian', 'alexander shibaev alexey smirnov', 'viktoria pavlovich svetlana ganina'], ['2009 velenje', 'hao shuai', 'cao zhen', 'xu xin zhang chao', 'cao zhen fan ying'], ['2008 velenje', 'vladimir samsonov', 'li jiao', 'chang yen - shu chiang peng - lung', 'irina kotikhina li jie'], ['2007 velenje', 'wang hao', 'guo yue', 'chen qi wang liqin', 'guo yan zhang yining'], ['2006 velenje', 'wang hao', 'guo yue', 'hao shuai ma long', 'guo yue li xiaoxia']]
Statement: Wang Hao played on the Men 's Single a Year before Vladimir Samsonov
Statement: Li Xiaoxia played on Woman 's Double 2 time
Statement: Xu Xin played 4 Year after Guo Yue
Statement: Chen Qi Wang Liqin won the Men 's Double a Year before Chang Yen
Statement: Guo Yue won for 2 consecutive Year