"Kaʻiulani is family."
Translation:He ʻohana ʻo Kaʻiulani.
He is a or an. Used to state that this person is family.
'o in this sentence is normal for showing a pronoun.
e is used when to someone, before the pronoun.
E at the beginning of a sentence can be the same or showing that it's a commanding sentence. 'E hele'. Go. Is telling someone to go.
'E hele, e Ka'iulani'.
The piko preposition ( ʻo ) is used when you talk about someone or someplace. The hea prepositon ( e ) is used with a personʻs name when you are talking to the person.