I'm at Singapore @ChangiAirport (SIN) in Singapore https://t.co/wRkrOspUtK
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
East Region
[{'url': 'https://t.co/wRkrOspUtK', 'expanded_url': 'https://www.swarmapp.com/c/bEEZUf0018g', 'display_url': 'swarmapp.com/c/bEEZUf0018g', 'indices': [51, 74]}]
CHANGI AIRPORT
["i'm", 'singapore', '@changiairport', 'sin', 'singapore', 'https://t.co/wrkrosputk']
['sin', 'sin', 'sin', 'sin', 'sin']
@changiairport
singapore sin 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 says "singapore sin singapore" and does not contain any information or context that suggests it is related to maintenance issues or public housing. Therefore, the answer is "relatedness": False, "type": "none", and "explanation": "This is not related to public housing or maintenance issues."