Vocabulary consisting only from characters you are able to read
山
やま
mountain, pile, heap, climax, critical pointjlpt5, shizen
人工
じんこう
artificial, manmade, human work, human skill, artificialitymix
分の
ぶんの
denominator bun no numerator (in writing common fractions), X Yth's (Y bun no X)jlpt3, math
天女
てんにょ
heavenly nymph, celestial maidenmix
手入れ
ていれ
(1)repairs, maintenance, tending, trimming, grooming, (2)crackdown, (police) raid suru
水力
すいりょく
hydraulic power, water powermix
初めに
はじめに
in the beginning, at firstjlpt5
How big is your 'package'?ai, baka