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
緑の日
midorinohi
(n) Greenery Day (national holiday; May 4)namae, toki
土木
doboku
public worksmix
一兆
iččou
1,000,000,000,000, one trillion, one billion (obs. British)mix
黄金
ougon
gold; (n,adj-no) gold; (n,adj-no) gold; goldmix
三日
mikka
three days, the third day of the monthjlpt5, toki