Vocabulary consisting only from characters you are able to read
八日
jouka
eight days, the eighth (day of the month)jlpt5, toki
三日
mikka
three days, the third day of the monthjlpt5, toki
七日
nanoka
seven days, the seventh day of the monthjlpt5, toki
水力
suirjoku
hydraulic power, water powermix
山
jama
mountain, pile, heap, climax, critical pointjlpt5, shizen