On grammatical class:
- ra
- pro-sumti: a recent sumti before the last one, as determined by back-counting rules.
- ri
- pro-sumti: the last sumti, as determined by back-counting rules.
- ru
- pro-sumti: a remote past sumti, before all other in-use backcounting sumti.
- ri'au
- pro-sumti: the next/immediately following sumti (as determined by back-counting rules applied forward)
- xai
- they.(repeat >1 preceding sumti)
- zoi'i
- pro-sumti: current topic (most recent unquantified sumti occurring in a prenex).