I'm at nex in Singapore https://t.co/LtdjTFouyx
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
North-East Region
[{'url': 'https://t.co/LtdjTFouyx', 'expanded_url': 'https://www.swarmapp.com/c/2zFlXf2eoNp', 'display_url': 'swarmapp.com/c/2zFlXf2eoNp', 'indices': [24, 47]}]
SERANGOON CENTRAL
["i'm", 'nex', 'singapore', 'https://t.co/ltdjtfouyx']
[]
nex singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the tweet "nex singapore" does not relate to a maintenance report feedback to public flat house in Singapore. The tweet does not mention any specific issues or facilities related to public housing, and does not contain any keywords that suggest a maintenance report feedback. Therefore, the answer is "relatedness": False, and the type is "none".