Table:
0
A
B
C
D
E
1
Year Location
Mens Singles
Womens Singles
Mens Doubles
Womens Doubles
2
2012 Velenje
Zhang Jike
Ding Ning
Ma Long Zhang Jike
Ding Ning Guo Yan
3
2011 Velenje
Xu Xin
Wu Yang
Wang Hao Zhang Jike
Guo Yue Li Xiaoxia
4
2010 Velenje
Lee Sang-Su
Li Qian
Alexander Shibaev Alexey Smirnov
Viktoria Pavlovich Svetlana Ganina
5
2009 Velenje
Hao Shuai
Cao Zhen
Xu Xin Zhang Chao
Cao Zhen Fan Ying
6
2008 Velenje
Vladimir Samsonov
Li Jiao
Chang Yen-Shu Chiang Peng-Lung
Irina Kotikhina Li Jie
7
2007 Velenje
Wang Hao
Guo Yue
Chen Qi Wang Liqin
Guo Yan Zhang Yining
8
2006 Velenje
Wang Hao
Guo Yue
Hao Shuai Ma Long
Guo Yue Li Xiaoxia

Questions and formulas:
Question: Who was the womens double winner when the womens singles winner was Ding Ning?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="Ding Ning"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,C2:C8="Ding Ning"),5))
Level: medium