While morphological plural marking on human nouns represents a stable tendency, morphological plural marking on inanimate nouns is exceptional and needs further research. Inanimate nouns marked morphologically for plural are related to, for instance, semantic fields of administration, media, and education and are often loans from the lexifier.
Source: Swolkien de Sousa 2012
Source: Swolkien de Sousa 2012
Source: Swolkien de Sousa 2012
Source: Swolkien de Sousa 2012