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Sentosa Island
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SENTOSA
manis
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  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not appear to be related to a maintenance report feedback for a public flat house. The post contains a message about someone smiling while sitting alone, and does not mention any issues or concerns related to maintenance or infrastructure. Therefore, the answer is "relatedness": False, and the type is "none".