I'm at Kbox https://t.co/X9MrRuHfI5
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
East Region
[{'url': 'https://t.co/X9MrRuHfI5', 'expanded_url': 'https://www.swarmapp.com/c/adPngwfw96D', 'display_url': 'swarmapp.com/c/adPngwfw96D', 'indices': [12, 35]}]
TAMPINES EAST
["i'm", 'kbox', 'https://t.co/x9mrruhfi5']
[]
kbox
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance."},
    ]

It seems that the Twitter post "kbox" does not relate to a maintenance report feedback to a public flat house. The post does not mention any specific issue or facility related to public housing, and therefore it does not fit the given category.