驪黃牝牡 lí huáng pìn mǔ

DEFINITIONS

  1. a black stallion or possibly a yellow mare (idiom); don't judge by outward appearance

CHARACTERS

驪 lí a pure black horse; a pair of horses
黃 huáng yellow; surname
牝 pìn female of species; deep gorge
牡 mǔ male of animals; bolt of door