Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
二人 ふたり two persons, two people, pair, couplejlpt5
六つ むっつ sixjlpt5
水力 すいりょく hydraulic power, water powermix
一人 ひとり one personjlpt5
十七 じゅうなな 17math