Peng Liyuan (2nd L,front), wife of Chinese President Xi Jinping, Bun Rany (R, front), wife of Cambodian Prime Minister Hun Sen, Mehriban Aliyeva (3rd R,front), wife of Azerbaijan's president Ilham Aliyev, Raisa Atambayeva (L, front), wife of Kyrgyz President Almazbek Atambayev and Dargia Nazarbayeva (2nd R, front), daughter of Kazakhstan's President Nursultan Nazarbayev, watch Su Huiping, a successor ofChinese non-material cultural heritage Gu Embroidery, demonstrating the craft of Gu Embroidery in Shanghai, May 21, 2014. The fourth summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) opened in Shanghai on Wednesday.(Xinhua/Huang Jingwen)

Peng Liyuan (C), wife of Chinese President Xi Jinping, Bun Rany (L), wife of Cambodian Prime Minister Hun Sen, Mehriban Aliyeva (2nd L), wife of Azerbaijan's president Ilham Aliyev, Raisa Atambayeva, wife of Kyrgyz President Almazbek Atambayev (2nd R) and Dargia Nazarbayeva, daughter of Kazakhstan's President Nursultan Nazarbayev (R), poses for a group photo during their visit to Yuyuan Garden in Shanghai, May 21, 2014. The fourth summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) opened in Shanghai on Wednesday. (Xinhua/Huang Jingwen)

Peng Liyuan (C, 2nd Row), wife of Chinese President Xi Jinping, Bun Rany (3rd L, 2nd Row), wife of Cambodian Prime Minister Hun Sen, Mehriban Aliyeva (4th L, 2nd Row), wife of Azerbaijan's president Ilham Aliyev, Raisa Atambayeva, wife of Kyrgyz President Almazbek Atambayev (5th L, 2nd Row) and Dargia Nazarbayeva, daughter of Kazakhstan's President Nursultan Nazarbayev (4th R, 2nd Row), poses for a group photo with performers after watching entertainment performances in Shanghai, May 21, 2014. The fourth summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) opened in Shanghai on Wednesday. (Xinhua/Huang Jingwen)

Peng Liyuan (4th R, front), wife of Chinese President Xi Jinping, Bun Rany (5th R, front), wife of Cambodian Prime Minister Hun Sen, Mehriban Aliyeva (2nd R, front), wife of Azerbaijan's president Ilham Aliyev, Raisa Atambayeva, wife of Kyrgyz President Almazbek Atambayev (3rd R, front) and Dargia Nazarbayeva, daughter of Kazakhstan's President Nursultan Nazarbayev (R, front), watch a demonstration of rural paintings, in Shanghai, May 21, 2014. The fourth summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) opened in Shanghai on Wednesday. (Xinhua/Huang Jingwen)

Peng Liyuan (3rd R, front), wife of Chinese President Xi Jinping, Bun Rany (R), wife of Cambodian Prime Minister Hun Sen, Mehriban Aliyeva (5th R, front), wife of Azerbaijan's president Ilham Aliyev, Raisa Atambayeva, wife of Kyrgyz President Almazbek Atambayev (2nd R, front) and Dargia Nazarbayeva, daughter of Kazakhstan's President Nursultan Nazarbayev (4th R, front), watches the demonstration of bandhnu, a traditional Chinese dyeing handicraft featuring various folk patterns, in Shanghai, May 21, 2014. The fourth summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) opened in Shanghai on Wednesday. (Xinhua/Huang Jingwen)

Peng Liyuan (2nd L, front), wife of Chinese President Xi Jinping, Bun Rany (R, front), wife of Cambodian Prime Minister Hun Sen, Mehriban Aliyeva (3rd R, front), wife of Azerbaijan's president Ilham Aliyev, Raisa Atambayeva (L, front), wife of Kyrgyz President Almazbek Atambayev and Dargia Nazarbayeva (2nd R, front), daughter of Kazakhstan's President Nursultan Nazarbayev, watch Su Huiping, a successor of Chinese non-material cultural heritage Gu Embroidery, demonstrating the craft of Gu Embroidery in Shanghai, May 21, 2014. The fourth summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) opened in Shanghai on Wednesday. (Xinhua/Huang Jingwen)