With the order of Genitive-Noun, possession is apositional. This applies for alienable and inalienable possession.
Xèyân ngéi
"My house."
Càngnō xīn càngqun
"The government's new law."
Ké qá nam
"Your legs."
When a complex phrase possesses or acts as an attributive adjective to a simple, or also complex, phrase, the particle de is used to link them together. This is most often done to use a noun phrase with adjectives as an attributive adjective to another nouns (and with prepositional phrases...)
Tái cányún de qángam qìnûm líumung
"Low-income housing area."
(lit.) low income ATTR PL house area