The Xiao Wang couple invited Xiao Li and Xiao Zhang to their family ball. No man danced with his wife at the ball. Xiao Wang invited Xiao Li to dance. Xiao Li's partner was Xiao Zhang's wife, Xiao Ying's. Husband is dancing with Xiao Lan. So Xiao Wang, Xiao Li and Xiao Zhang are:. ['Xiao Wang Yi Xiao Lan, Xiao Li Yi Xiao Ying, Xiao Zhang Yi Xiaoli.', 'Xiao Wang Yi Xiao Lan, Xiao Li ~ Xiao Li, Xiao Zhang Yi Xiao Ying.', 'Xiao Wang Yi Xiao Ying, Xiao Li Yi Xiao Li, Xiao Zhang Yi Xiao Lan.', 'Xiao Wang Yi Xiao Li, Xiao Li Yi Xiao Lan, Xiao Zhang Yi Xiao Ying.']