Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
人工 jinkou artificial, manmade, human work, human skill, artificialitymix
kawa riverjlpt5, shizen
分かる wakaru be understoodgodan, jlpt5, verb, vintrans
一つ hitotsu onejlpt5
二十日 hatsuka twenty days, twentieth day of the monthjlpt5, toki