The four results of the Listeners’ Vehicle—namely, stream enterer, once-returner, nonreturner, and arhat, for each of which there are two kinds: those who have entered their respective level (“candidates,” Tib. zhugs pa) and those who are firmly established on it (“graduates,” Tib. ’bras la gnas pa), hence the alternative Tibetan term zhugs gnas brgyad. [OMS, 2018]