I got a secret! Can you guess what it is??? @ Singapore https://t.co/GilzOfaK1g
Central Region
[{'url': 'https://t.co/GilzOfaK1g', 'expanded_url': 'https://www.instagram.com/p/CQQuwJqJ5ly/?utm_medium=twitter', 'display_url': 'instagram.com/p/CQQuwJqJ5ly/…', 'indices': [56, 79]}]
MARINA CENTRE
['got', 'secret', 'guess', 'singapore', 'https://t.co/gilzofak1g']
['secret', 'guess']
secret guess what
got secret guess 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 you provided does not mention anything related to maintenance report feedback for a public flat house in Singapore. The post simply says "got secret guess singapore" and does not provide any context or information that would suggest otherwise. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.