Part of speech mismatches in modular grammar

The Jingulu language of central-northern Australia presents some difficulties in terms of classifying certain of its lexemes into part of speech categories. Personal names, for instance, which should be nouns on notional grounds, have the phonological and morphosyntactic properties of interjections, whilst notionally verbal roots are distinctly non-verbal in their distribution. These phenomena are analysed according to the principles of autolexical syntax, wherein different levels of representation of the same linguistic item (morphem, word, phrase and so forth) need not necessarily correspond to one another exactly.