Vocabulary consisting only from characters you are able to read
土日
donichi
weekend, Saturday and Sundaymix
中
naka
inside, middle, amongjlpt5
水力
suiryoku
hydraulic power, water powermix
山
yama
mountain, pile, heap, climax, critical pointjlpt5, shizen
耳にする
miminisuru
to hear, to hear by chance, to hear by accident, to catch (the sound)suru
山上
sanjou
mountain topmix