Vocabulary consisting only from characters you are able to read
水力
suirjoku
hydraulic power, water powermix
山
jama
mountain, pile, heap, climax, critical pointjlpt5, shizen
忍び
šinobi
(1)stealth, (2)(abbr) travelling incognito (traveling), (3)(abbr) ninjutsu, (4)(abbr) ninja, (5)sneak theft, sneak thief, (6)tolerance mix