Suffixation is also used for genitive constructions. These suffixes can be either prenominal/pronominal or postnominal. First person genitives allow either form. Third person genitives observe a robust differentiation between those cases in which the subject and possessor are the same entity and those in which they are not. In the former case, the instrumental suffix "-" is added to the prenominal genitive marker, and the possessed noun take the postnominal demonstrative genitive ending. In the latter case, the instrumental "-" attaches to the postnominal genitive ending on the possessed noun, and the prenominal suffix remains unchanged.