Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
人口 じんこう populationjlpt4, leda1
気づく きづく to notice/to recognize/to recognise/to become aware of/to perceive/to realize/to realisegodan, verb
よん fourjlpt5
三つ みっつ threejlpt5
しち (num) sevenjlpt5