Vocabulary consisting only from characters you are able to read
白黒
shirokuro
(1)black and white, monochrome, (exp,vs) (2)good and evil, right and wrong, guilt and innocence iro
暗い色
kuraiiro
dark color, dark colouriro
億
oku
(num) 100,000,000, hundred millionjlpt4
黄金
ougon
gold; (n,adj-no) gold; (n,adj-no) gold; goldmix