Vocabulary consisting only from characters you are able to read
白黒
širokuro
(1)black and white, monochrome, (exp,vs) (2)good and evil, right and wrong, guilt and innocence iro
十億
džuuoku
1,000,000,000, billion (American), (obs) milliard (British)mix
二十日
hacuka
twenty days, twentieth day of the monthjlpt5, toki
主な
omona
chief, main, principal, importantmix
黄金
ougon
gold; (n,adj-no) gold; (n,adj-no) gold; goldmix