Classification
C. L. Voorhoeve tentatively linked Yawa with the East Geelvink Bay languages in his Geelvink Bay proposal. However, the relationship would be a distant one at best, and Mark Donohue felt in 2001 that Yawa had not been shown to be related to any other language. Recently Malcolm Ross made a tentative proposal that Yawa might be part of an Extended West Papuan language phylum. The pronominal resemblances are most apparent when comparing proto-Yawa to the East Bird's Head language Meax:
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I thou s/he you Proto-Yawa *rei *uein *wepi *waya Meax didif bua ofa iwa
d~r, b~w, we~o, p~f are all common sound correspondences.
Ethnologue (2009) took this a step further, and placed Yawa within West Papuan itself.
Read more about this topic: Yawa Languages