彼女の自然な笑顔が美しい

N5 彼女 kanojo she N3 自然 shizen nature, natural, spontaneous N3 笑顔 egao smile, smiling face N4 美しい utsukushii beautiful, lovely

N3 彼 hi / kare, kano, ka.no he, that, the N5 女 jo, nyo, nyou / onna, me woman, female, femme N4 自 ji, shi / mizuka.ra, ono.zukara, ono.zuto oneself, soi-même, uno mismo N3 然 zen, nen / shika, shika.ri, shika.shi, sa sort of thing, so, if so N3 笑 shou / wara.u, e.mu laugh, rire, risa N3 顔 gan / kao face, expression, visage N3 美 bi, mi / utsuku.shii beauty, beautiful, beauté

N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase