Black upon dark! @ Singapore https://t.co/yqUaJHqjTx
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/yqUaJHqjTx', 'expanded_url': 'https://www.instagram.com/p/B-CSS3mhHVB/?igshid=1rl71dtszjodn', 'display_url': 'instagram.com/p/B-CSS3mhHVB/…', 'indices': [29, 52]}]
MARINA CENTRE
['black', 'upon', 'dark', 'singapore', 'https://t.co/yquajhqjtx']
['dark']
black upon dark
black upon dark singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

It seems that the post does not mention any specific issue or concern related to maintenance or public housing. The phrase "black upon dark singapore" is not clear or relevant to the topic of maintenance reports. Therefore, the answer is that the post does not relate to a maintenance report feedback to public flat house.