BM 6 ( ( 鷸 鷸 鷸 鷸 鷸 鷸 鷸 2 2 2 2 (x(x(x(x 2 2 (x(x 2 2 (x(x 2 2 2 2 (x 2 2 2 2 (x 鷸 鷸 鷸 2 2 2 2 (x(x(x 2 2 2 2 (x(x(x(x 2 2 (x 鷸 鷸 2 2 (x 鷸 鷸 鷸 2 2 2 2 (x(x(x(x(x(x