Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
開閉 かいへい opening and shuttingsuru
明るい あかるい brightadj, leda1
閉じる とじる to close (e.g. book, eyes, meeting, etc.), to shutichidan, jlpt3, verb
さん (num) threejlpt5, mix
便り たより (1)news, tidings, information, correspondence, letter; (2)news from ... mix
よん fourjlpt5
五つ いつつ fivejlpt5
明らかな あきらかな clearadj
~年 ~ねん makes preceding number a yearjlpt5, toki
八つ やっつ eightjlpt5