Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
風力 fuuryoku wind powermix
四つ yottsu fourjlpt5
人口 jinkou populationjlpt4, leda1
山川 sansen; yamakawa; yamagawa mountains and rivers; mountains and rivers; mountain riversmix
火力 karyoku heating power, steam powermix