シンガポール入国 (@ Changi in Singapore) https://t.co/b3OWlcixSj
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
East Region
[{'url': 'https://t.co/b3OWlcixSj', 'expanded_url': 'https://www.swarmapp.com/c/iCRIaXGloXN', 'display_url': 'swarmapp.com/c/iCRIaXGloXN', 'indices': [33, 56]}]
CHANGI AIRPORT
changi singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post "changi singapore" does not relate to a maintenance report feedback to public flat house. It is not specific to any particular issue or facility in a public housing estate, and does not contain any keywords or hashtags 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?"