Vocabulary consisting only from characters you are able to read
私
わたくし
I (formal), myself, private affairsjlpt5
水力
すいりょく
hydraulic power, water powermix
よじ上る
よじのぼる
to climb, to clamber (over, up), to scramble (up), to scale, to claw one's way upgodan, verb, vintrans
上る
のぼる
(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), t godan, jlpt3, verb, vintrans