This is the 5142nd most frequent Korean word.
노원구의
"Of/from Nowon District" (referring to a region in Seoul, South Korea).
노원구의 is used to show possession ('of Nowon District') of the noun 가.
노원구의 공원은 아주 크고 아름답습니다.
The park of Nowon District is very big and beautiful.
노원구의 is attributing the noun ('cultural facilities') to Nowon District.
서울에는 노원구의 문화시설이 있습니다.
In Seoul, there are cultural facilities of Nowon District.
노원구의 denotes the location or association of the noun 'market' with Nowon District.