Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
二人 futari two persons, two people, pair, couplejlpt5
kawa riverjlpt5, shizen
八つ jaccu eightjlpt5
山川 sansen; jamakawa; jamagawa mountains and rivers; mountains and rivers; mountain riversmix
九九 kuku násobilkaleda1, math