 Green (2003) makes a case that the formal correspondences in core morphological sequences of the finite verbs of the two languages are too similar (in their complexities and their irregularities) to have come about through anything other than shared descent from a common parent language; the two languages make up the Southern Daly language family.Nonetheless, other than having cognates in their finite-verb morphology and in their words for 'thou' "(nhinhi" and "nyinyi)" and 'this' "(kanhi" and "kinyi)," they have little vocabulary in common, though their grammatical structures are very similar.It is not clear what could explain this discrepancy.