Vocabulary consisting only from characters you are able to read
九日
ここのか
nine days, the ninth day (of the month)jlpt5, toki
上がる
あがる
(1)to rise/to go up/to come up/to ascend/to be raised/ (2)to enter (esp. from outdoors)/to come in/to go in/ (3)to enter (a school)/to advance to the next grade/ (4)to get out (of water)/to come asho godan, verb, vintrans
水力
すいりょく
hydraulic power, water powermix