彼女の指輪を見て宝石だと気づいた

N5 彼女 kanojo she N5 彼 kare he N4 指輪 yubiwa ring N3 宝石 houseki gem, jewel N1 だと dato if it's the case N4 気 ki spirit, mood, feeling, energy

N3 彼 hi / kare, kano, ka.no he, that, the N5 女 jo, nyo, nyou / onna, me woman, female, femme N3 指 shi / yubi, sa.su, -sa.shi finger, point to, indicate N2 輪 rin / wa wheel, ring, circle N5 見 ken / mi.ru, mi.eru, mi.seru see, hopes, chances N2 宝 hou / takara treasure, wealth, valuables N3 石 seki, shaku, koku / ishi stone, pierre, piedra N5 気 ki, ke / ki spirit, mind, air

N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase