liú qiú
refers to the Ryūkyū Islands 琉球群島|琉球群岛[Liu2 qiu2 Qun2 dao3] stretching from Japan to Taiwan
Ryūkyū; Liuchiu township in Pingtung County 屏東縣|屏东县[Ping2 dong1 Xian4], Taiwan
琉
liú
precious stone
球
qiú
ball