Vocabulary consisting only from characters you are able to read
土木
doboku
public worksmix
水力
suiryoku
hydraulic power, water powermix
二十日
hatsuka
twenty days, twentieth day of the monthjlpt5, toki
忍び
shinobi
(1)stealth, (2)(abbr) travelling incognito (traveling), (3)(abbr) ninjutsu, (4)(abbr) ninja, (5)sneak theft, sneak thief, (6)tolerance mix