I'm at Sembawang in Singapore https://t.co/padBp1Nw93
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North Region
[{'url': 'https://t.co/padBp1Nw93', 'expanded_url': 'https://www.swarmapp.com/c/eRO811u5tYw', 'display_url': 'swarmapp.com/c/eRO811u5tYw', 'indices': [30, 53]}]
SEMBAWANG CENTRAL
sembawang singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the tweet "sembawang singapore" does not relate to a maintenance report feedback to public flat house. It is possible that the user is simply mentioning the location of Sembawang in Singapore, or that the tweet is unrelated to any specific topic.