This is the 10592nd most frequent Korean word.
국정원의
"Of the National Intelligence Service (NIS)."
The word '국정원의' indicates the possessive form, meaning 'of the National Intelligence Service'. It shows that the investigation was conducted by the NIS.
국정원의 조사로 새로운 단서가 발견되었습니다.
A new clue was discovered through the investigation by the National Intelligence Service (NIS).
Here, '국정원의' signifies possession or association, referencing a report created by or related to the NIS.
그 회의는 국정원의 보고서를 기반으로 이루어졌습니다.
The meeting was based on the report of the National Intelligence Service.
In this case, '국정원의' connects 'employees' to 'the National Intelligence Service', indicating that these employees are part of the NIS.