Family union @Daehan Korean https://t.co/nvujBZmyJM
East Region
[{'url': 'https://t.co/nvujBZmyJM', 'expanded_url': 'https://www.instagram.com/p/CSQ6bn8Hj-p/?utm_medium=twitter', 'display_url': 'instagram.com/p/CSQ6bn8Hj-p/…', 'indices': [28, 51]}]
KEMBANGAN
['family', 'union', '@daehan', 'korean', 'https://t.co/nvujbzmyjm']
[]
family union @daehan korean
family union korean
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not contain any information related to maintenance report feedback for public flat houses. The term "family union korean" does not suggest any connection to maintenance or infrastructure issues in public housing. Therefore, the answer is a JSON object with "relatedness" set to "False", "type" set to "none", and "explanation" set to a brief explanation of why the post does not relate to the requested topic.