I'm at Grapevine Café Bar &amp; Restaurant in Upper Serangoon, Singapore w/ @paranoid_lust https://t.co/iUBr6ffIlj
North-East Region
[{'url': 'https://t.co/iUBr6ffIlj', 'expanded_url': 'https://www.swarmapp.com/c/dG8FY9yqxMm', 'display_url': 'swarmapp.com/c/dG8FY9yqxMm', 'indices': [91, 114]}]
KOVAN
["i'm", 'grapevine', 'café', 'bar', 'restaurant', 'upper', 'serangoon', 'singapore', 'w', '@paranoid_lust', 'https://t.co/iubr6ffilj']
[]
grapevine restaurant upper @paranoid lust
grapevine caf bar amp restaurant upper serangoon singapore w
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the Twitter post you provided does not relate to a maintenance report feedback for a public flat house. The post mentions a business, Grapevine Café Bar & Restaurant, located in Upper Serangoon, Singapore, but it does not mention any issues or feedback related to public housing or maintenance reports. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.