Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
roku (num) sixjlpt5
nana 7jlpt5
八つ yattsu eightjlpt5
ni (num) twojlpt5
kyuu ninejlpt5, mix
四つ yottsu fourjlpt5
kawa riverjlpt5, shizen
mizu waterjlpt5, kagaku, ryouri, shizen
juu (num) 10, tenjlpt5
一つ hitotsu onejlpt5