Vocabulary consisting only from characters you are able to read
山
yama
mountain, pile, heap, climax, critical pointjlpt5, shizen
二日
futsuka
second day of the month, two daysjlpt5, toki
水力
suiryoku
hydraulic power, water powermix
八日
youka
eight days, the eighth (day of the month)jlpt5, toki