I'm at Secret Garden in Singapore https://t.co/saS1PBtg90
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
Central Region
[{'url': 'https://t.co/saS1PBtg90', 'expanded_url': 'https://www.swarmapp.com/c/2UqXPkPEn9b', 'display_url': 'swarmapp.com/c/2UqXPkPEn9b', 'indices': [34, 57]}]
MARINA SOUTH
["i'm", 'secret', 'garden', 'singapore', 'https://t.co/sas1pbtg90']
['garden', 'secret', 'garden']
secret garden
secret garden singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post "secret garden singapore" does not relate to a maintenance report feedback to public flat house. It is likely a reference to a tourist attraction or a hidden garden in Singapore, rather than a maintenance issue.