I'm at Coastes in Singapore https://t.co/A5i4WveEJP
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Central Region
[{'url': 'https://t.co/A5i4WveEJP', 'expanded_url': 'https://www.swarmapp.com/pax222x/checkin/5e3509018605b10008dfc583?s=BWvEUR7MM9tTbL8FV2jEtif9m1c&ref=tw', 'display_url': 'swarmapp.com/pax222x/checki…', 'indices': [28, 51]}]
SENTOSA
["i'm", 'coastes', 'singapore', 'https://t.co/a5i4wveejp']
[]
coastes singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the tweet "coastes singapore" does not relate to a maintenance report feedback to public flat house in Singapore. It is possible that the user is simply mentioning the location of Singapore or using the word "coastes" in a different context.