구룡마을은

In a sentence

• 구룡마을은 서울에 위치한 저소득층 밀집 지역입니다.

  Guryeong village is a densely populated low-income area located in Seoul.

  Here '구룡마을은' acts as the subject of the sentence, indicating the topic being discussed - Guryeong village.

• 구룡마을은 다양한 사회적 문제를 가지고 있습니다.

  Guryeong village has various social issues.

  In this usage, '구룡마을은' introduces Guryeong village as the subject, elaborating on its associated challenges.

• 구룡마을은 시민단체들에 의해 지원을 받고 있습니다.

  Guryeong village receives support from civic organizations.

  Here, '구룡마을은' serves as the topic marker for discussing the village's interaction with civic organizations.