牛皮癬
Niú pí xuǎn
Sì mǎ xià
(team of) four horses lower (bellow) 駟馬(下)
Sì mǎ zhōng
(team of) four horses center (middle) 駟馬(中)
Sì mǎ shàng
(team of) four horses upper (above) 駟馬(上)