Vocabulary consisting only from characters you are able to read
人
hito
man, person, human being, mankindhito, jlpt5
二人
futari
two persons, two people, pair, couplejlpt5
金山
kinzan
(gold) mine; (gold) minemix
緑の日
midorinohi
(n) Greenery Day (national holiday; May 4)namae, toki
水力
suirjoku
hydraulic power, water powermix