Initiator of subordinating adverbial relative clause with leftwards logical scope. The adverbial clause binds the resumptive pronoun {ke'a} to the outer clause, which becomes irrealis (i.e. not necessarily claimed to be true). Terminator: {se'u}.
Right-scoping adverbial clause: encloses a bridi and turns it into an adverbial term; the antecedent (ke'a) of the enclosed bridi stands for the outer bridi {lo su'u no'a ku} (the bridi in which this xoi term appears), including all the other adverbial terms (tags...) within this bridi located on the right of this xoi term (rightward scope).