I'm at Copacabana https://t.co/sIqa412aA5
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
East Region
[{'url': 'https://t.co/sIqa412aA5', 'expanded_url': 'https://www.swarmapp.com/c/gFOBKNpq9Ht', 'display_url': 'swarmapp.com/c/gFOBKNpq9Ht', 'indices': [18, 41]}]
TAMPINES EAST
["i'm", 'copacabana', 'https://t.co/siqa412aa5']
[]
copacabana
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the tweet "copacabana" does not relate to a maintenance report feedback to a public flat house. It is not a specific issue or complaint related to a building or facility, and does not mention any specific location or block number. Therefore, the answer is "relatedness": False, "type": "none", and "explanation": "This is not related to public housing or maintenance issues."