Words with spatial meanings: issues of identification

The paper deals with the status of spatial adverbials derived from the nouns verkh ‘~up', niz ‘~down', pered ‘~front', zad ‘~back', bok ‘~side', vys' ‘~up', glub' ‘depth', bliz' ‘~close', shir' ‘~wide'. An algorithm defining the POS status of these lexemes is proposed basing on the semantical and syntactical properties of the spatial adverbials and prepositional phrases. The algorithm can also offer a stricter orthographical rule concerning these adverbials.