OSSEOUS / Countdown 
https://t.co/VAPZvw4U0G 

📸 @nolizaldivar @ Singapore https://t.co/7kkDSH7SNi
Central Region
[{'url': 'https://t.co/VAPZvw4U0G', 'expanded_url': 'http://www.machina.cc', 'display_url': 'machina.cc', 'indices': [21, 44]}, {'url': 'https://t.co/7kkDSH7SNi', 'expanded_url': 'https://www.instagram.com/p/CU_b56QjPrx/?utm_medium=twitter', 'display_url': 'instagram.com/p/CU_b56QjPrx/…', 'indices': [75, 98]}]
MARINA CENTRE
['osseous', 'countdown', 'https://t.co/vapzvw4u0g', '📸', '@nolizaldivar', 'singapore', 'https://t.co/7kkdsh7sni']
['countdown']
osseous @nolizaldivar
osseous countdown singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the provided Twitter post does not relate to a maintenance report feedback for a public flat house in Singapore. The term "osseous countdown" does not seem to be associated with any common issues or requests related to public housing in Singapore. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house in Singapore.