Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
分子 ぶんし the numeratormath
クルミの木 クルミのき walnutshokubutsu
うえ above, on top of, up, upper part, surfacejlpt5
古文 こぶん ancient writing, classical literature; ancient writing, classical literaturegakkou
山海 さんかい mountains and seasshizen