I'm at Grapevine Café Bar &amp; Restaurant in Upper Serangoon, Singapore https://t.co/DXM8e7XfYu
North-East Region
[{'url': 'https://t.co/DXM8e7XfYu', 'expanded_url': 'https://www.swarmapp.com/c/hHhoqtvIu7C', 'display_url': 'swarmapp.com/c/hHhoqtvIu7C', 'indices': [73, 96]}]
KOVAN
["i'm", 'grapevine', 'café', 'bar', 'restaurant', 'upper', 'serangoon', 'singapore', 'https://t.co/dxm8e7xfyu']
[]
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 issues."},
    ]

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 about maintenance issues or public housing. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.