I'm at @Apple Marina Bay Sands in Singapore https://t.co/IhlweFjdJB
Central Region
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BAYFRONT SUBZONE
["i'm", '@apple', 'marina', 'bay', 'sand', 'singapore', 'https://t.co/ihlwefjdjb']
[]
@apple marina
marina bay sands singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

The post "marina bay sands singapore" does not relate to a maintenance report feedback to public flat house. It is a mention of a specific location, Marina Bay Sands Singapore, which is a luxury hotel and casino located in Singapore. Therefore, the post does not fit into any of the categories provided.