"Malia is a very useless older sister."
Translation:He kaikuaʻana pohō loa ʻo Malia.
...(kaikunāne) means brother, and (kaikuahine) means sister. However, ... these terms apply specifically to the brother of girl, or the sister of a boy.
This means that if you are a boy and want to refer to your brother , you need to identify whether he is your older brother (kaikuaʻana) or younger brother (kaikaina). ...the same terms are used to identify the older and younger sister of a girl. (Page 179, Hawaiian Language Fundamentals ʻŌLELO ʻŌIWI, Hōkūlani Cleeland)
= Equational Sentences,
HE (Slide 1 to 7)
ʻO (Slide 8 to 14)
He aha vs. ʻO wai (15 to 16)
(Grammar Link): https://www.slideshare.net/malama777/aike-101