0 (used as the object of a verb or preposition, but in everyday speech sometimes replaced by who) what person(s)(?) -- siapa
1 (used to refer to a person or people mentioned previously, to distinguish him or them from others; able to be omitted or replaced by that except when following a preposition) (the) one(s) that -- yang
2 used, after a comma, to introduce a further comment on a person or people -- yang