🌤✨🇸🇬
#gblsSingapore2019 @ Marina Bay Sands https://t.co/rMZQkuq8I9
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/rMZQkuq8I9', 'expanded_url': 'https://www.instagram.com/p/B6zy969hJGG8HWbaEwKyDCbhGbTQei-42IcTpY0/?igshid=1ik1bpmipu73u', 'display_url': 'instagram.com/p/B6zy969hJGG8…', 'indices': [43, 66]}]
BAYFRONT SUBZONE
#gblssingapore     marina
gblssingapore2019 marina bay sands
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post does not relate to a maintenance report feedback to public flat house. The term "gblssingapore2019" is not a common term related to public housing or maintenance reports, and the mention of "Marina Bay Sands" does not provide any context that suggests otherwise. Therefore, the answer is that the post does not relate to a maintenance report feedback to public flat house.