I'm at Subway in Singapore https://t.co/JoZWPP4nBz
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
East Region
[{'url': 'https://t.co/JoZWPP4nBz', 'expanded_url': 'https://www.swarmapp.com/c/kk0wixJ03PK', 'display_url': 'swarmapp.com/c/kk0wixJ03PK', 'indices': [27, 50]}]
BEDOK NORTH
["i'm", 'subway', 'singapore', 'https://t.co/jozwpp4nbz']
[]
subway
subway singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post you provided does not relate to a maintenance report feedback to public flat house in Singapore. The post simply mentions "subway Singapore" without providing any additional context or information that would suggest otherwise. Therefore, the answer is "relatedness": False, and the type is "none", with a brief explanation that it is not related to public housing or maintenance issues.