ona - third-person pronoun (he/she/it/they)
musi - artistic, entertaining, frivolous, playful, recreation
jan - human being, person
ike - bad, negative; non-essential, irrelevant
soweli - animal, beast, land mammal
waso - bird, flying creature, winged animal
li - marks the predicate
we covered sentences with only mi or sina as the subject, but for sentences with any other word as the subject, it's different
in this case, you use the particle li to introduce the predicate:
subject li predicate
ona li
suwi
~
they
are cute
waso li
waso
~
birds
are birds
they're a bird
people are playing
ike li ike
suwi li pona
musi li pona