HUMAN || || at- || at || || |- | PARTITIVE || || aa- || || || |} The numbers in the first column represent the usual concept of person, i.e. first, second, or third. Story and Naish identified a fourth person, but this term is inappropriate since they did not describe a clear separation between the so-called fourth person and the other impersonal pronominals. When analyzing a sentence, the pronominal type is given first, then the form (subject, object, independent) is given following a period. This uniquely represents the pronominal as a two dimensional unit. Thus 1SINGULAR SUBJECT is the first person singular subject pronominal, realized as xhat. The RECIPROCAL does not uniquely identify one of the two reciprocal pronominals, but since they are both phonetically identical as woosh, it is generally unnecessary to uniquely identify them. There is also a notional zeroth person which can be of subject, object, or independent form. This is not realized in Tlingit, instead it is an empty placeholder for analysis. Subject pronominals The subject pronominals are all incorporated into the verb. Thus when the subject is represented as a pronominal, the subject position of the sentence is empty. Object pronominals Object pronominals are divided into three classes, the verbal, nominal, and postpositional. The verbal object pronominals function similarly to the subject pronominals in that they preclude an explicit object when used. The nominal object pronominals are similar in some respects to the possessive pronouns of English. They precede a noun and represent the object of the noun, typically implying possession of the noun. Postpositional object pronominals function as objects to which postpositions are attached. They act as the object of a postposition in a manner similar to an ordinary noun suffixed with a postposition. Directionals Strictly speaking, the Tlingit directionals can be classified as nouns on the basis of their syntactic function. However, they form a distinct semantic set of nouns which indicate direction relative to some stated position. They also show stem variation depending locative suffixation, in particular with the allative suffix -dei. These stem variants also occur with the adverb construction N1-da-N2-(i)n "N2 N1-ward" where N2 is an anatomic noun and N1 is a directional stem. {|class="wikitable" ! !! Noun !! N-dei !! N-naa !! Adverb (+15) |- | up above || (di-)kée || (di-)kín-dei || (di-)kee-naa || kei, kéi |- | down below || (di-)yée || (di-)yín-dei || (di-)yee-naa