How you doin’? @ Singapore https://t.co/rocE1xVQMw
Central Region
[{'url': 'https://t.co/rocE1xVQMw', 'expanded_url': 'https://www.instagram.com/p/CHf3qtnBzca/?igshid=awtbmajpab2z', 'display_url': 'instagram.com/p/CHf3qtnBzca/…', 'indices': [27, 50]}]
MARINA CENTRE
['doin', '’', 'singapore', 'https://t.co/roce1xvqmw']
[]
doin singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

It seems that the post "doin singapore" does not contain any information related to a maintenance report feedback for a public flat house. The post does not mention any specific issue or facility related to public housing, and does not appear to be a complaint or feedback of any kind. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.