Gangster racing @ Singapore https://t.co/H3CXnemrbB
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/H3CXnemrbB', 'expanded_url': 'https://www.instagram.com/p/CCio_XnAm-2/?igshid=1t92ees114qfu', 'display_url': 'instagram.com/p/CCio_XnAm-2/…', 'indices': [28, 51]}]
MARINA CENTRE
gangster racing
gangster racing singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to maintenance report feedback for public flat houses."},
    ]

It seems that the Twitter post you provided does not mention anything related to maintenance report feedback for public flat houses in Singapore. The term "gangster racing" does not seem to be associated with any maintenance or infrastructure issues related to public housing in Singapore. Therefore, the answer is that the post does not relate to a maintenance report feedback to public flat house.