genitivephrase
A genitive phrase is a syntactic unit used to express a genitive relation between a possessor and a possessed noun. It typically functions within noun phrases to convey possession, association, or related relations such as measurement or part-whole. In many languages, the genitive relation is realized by a dedicated morphological or prepositional strategy, while in English it is most often expressed in two main forms: the s-genitive (the possessor with an -'s or -s) and the of-genitive (the possessed noun followed by of and the possessor).
In English, examples include John’s hat, where John is the possessor marked by ’s, and the hat
Cross-linguistically, genitive phrases are common and may be realized by genitive case marking on the possessor