I'm at Grapevine Café Bar &amp; Restaurant in Upper Serangoon, Singapore https://t.co/GiOyEs1Jes
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
North-East Region
[{'url': 'https://t.co/GiOyEs1Jes', 'expanded_url': 'https://www.swarmapp.com/c/hTjQVFrgmDb', 'display_url': 'swarmapp.com/c/hTjQVFrgmDb', 'indices': [73, 96]}]
KOVAN
["i'm", 'grapevine', 'café', 'bar', 'restaurant', 'upper', 'serangoon', 'singapore', 'https://t.co/gioyes1jes']
[]
grapevine restaurant upper
grapevine caf bar amp restaurant upper serangoon singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the tweet you provided does not relate to a maintenance report feedback for a public flat house. The tweet mentions a business called "Grapevine Café & Bar & Restaurant" located in Upper Serangoon, Singapore, but it does not contain any information related to maintenance reports or public housing. Therefore, the answer is "False" for the question "Does the post relate to a maintenance report feedback to public flat house?"